3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavformat/avformat.h"
31 #include "libavdevice/avdevice.h"
32 #include "libswscale/swscale.h"
33 #include "libavresample/avresample.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/audioconvert.h"
36 #include "libavutil/parseutils.h"
37 #include "libavutil/samplefmt.h"
38 #include "libavutil/colorspace.h"
39 #include "libavutil/fifo.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/dict.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/time.h"
48 #include "libavformat/os_support.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/buffersink.h"
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
61 #if HAVE_GETPROCESSMEMORYINFO
67 #include <sys/select.h>
78 #include "libavutil/avassert.h"
81 #define VSYNC_PASSTHROUGH 0
85 const char program_name[] = "avconv";
86 const int program_birth_year = 2000;
88 /* select an input stream for an output stream */
89 typedef struct StreamMap {
90 int disabled; /** 1 is this mapping is disabled by a negative map */
94 int sync_stream_index;
95 char *linklabel; /** name of an output link, for mapping lavfi outputs */
99 * select an input file for an output file
101 typedef struct MetadataMap {
102 int file; ///< file index
103 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
104 int index; ///< stream/chapter/program number
107 static const OptionDef *options;
109 static int video_discard = 0;
110 static int same_quant = 0;
111 static int do_deinterlace = 0;
112 static int intra_dc_precision = 8;
113 static int qp_hist = 0;
115 static int file_overwrite = 0;
116 static int do_benchmark = 0;
117 static int do_hex_dump = 0;
118 static int do_pkt_dump = 0;
119 static int do_pass = 0;
120 static char *pass_logfilename_prefix = NULL;
121 static int video_sync_method = VSYNC_AUTO;
122 static int audio_sync_method = 0;
123 static float audio_drift_threshold = 0.1;
124 static int copy_ts = 0;
125 static int copy_tb = 1;
126 static int opt_shortest = 0;
127 static char *vstats_filename;
128 static FILE *vstats_file;
130 static int audio_volume = 256;
132 static int exit_on_error = 0;
133 static int using_stdin = 0;
134 static int64_t video_size = 0;
135 static int64_t audio_size = 0;
136 static int64_t extra_size = 0;
137 static int nb_frames_dup = 0;
138 static int nb_frames_drop = 0;
139 static int input_sync;
141 static float dts_delta_threshold = 10;
143 static int print_stats = 1;
146 /* signal to input threads that they should exit; set by the main thread */
147 static int transcoding_finished;
150 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
152 typedef struct InputFilter {
153 AVFilterContext *filter;
154 struct InputStream *ist;
155 struct FilterGraph *graph;
159 typedef struct OutputFilter {
160 AVFilterContext *filter;
161 struct OutputStream *ost;
162 struct FilterGraph *graph;
165 /* temporary storage until stream maps are processed */
166 AVFilterInOut *out_tmp;
169 typedef struct FilterGraph {
171 const char *graph_desc;
173 AVFilterGraph *graph;
175 InputFilter **inputs;
177 OutputFilter **outputs;
181 typedef struct InputStream {
184 int discard; /* true if stream data should be discarded */
185 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
187 AVFrame *decoded_frame;
189 int64_t start; /* time when read started */
190 /* predicted dts of the next packet read for this stream or (when there are
191 * several frames in a packet) of the next frame in current packet */
193 /* dts of the last packet read for this stream */
195 PtsCorrectionContext pts_ctx;
197 int is_start; /* is 1 at the start and after a discontinuity */
198 int showed_multi_packet_warning;
200 AVRational framerate; /* framerate forced with -r */
204 int resample_pix_fmt;
206 int resample_sample_fmt;
207 int resample_sample_rate;
208 int resample_channels;
209 uint64_t resample_channel_layout;
211 /* a pool of free buffers for decoded data */
212 FrameBuffer *buffer_pool;
214 /* decoded data from this stream goes into all those filters
215 * currently video and audio only */
216 InputFilter **filters;
220 typedef struct InputFile {
221 AVFormatContext *ctx;
222 int eof_reached; /* true if eof reached */
223 int ist_index; /* index of first stream in ist_table */
224 int buffer_size; /* current total buffer size */
226 int nb_streams; /* number of stream that avconv is aware of; may be different
227 from ctx.nb_streams if new streams appear during av_read_frame() */
231 pthread_t thread; /* thread reading from this file */
232 int finished; /* the thread has exited */
233 int joined; /* the thread has been joined */
234 pthread_mutex_t fifo_lock; /* lock for access to fifo */
235 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
236 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
240 typedef struct OutputStream {
241 int file_index; /* file index */
242 int index; /* stream index in the output file */
243 int source_index; /* InputStream index */
244 AVStream *st; /* stream in the output file */
245 int encoding_needed; /* true if encoding needed for this stream */
247 /* input pts and corresponding output pts
249 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
250 struct InputStream *sync_ist; /* input stream to sync against */
251 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
252 /* pts of the first frame encoded for this stream, used for limiting
255 AVBitStreamFilterContext *bitstream_filters;
258 AVFrame *filtered_frame;
261 AVRational frame_rate;
265 float frame_aspect_ratio;
268 /* forced key frames */
269 int64_t *forced_kf_pts;
272 char *forced_keyframes;
276 OutputFilter *filter;
281 int is_past_recording_time;
283 const char *attachment_filename;
284 int copy_initial_nonkeyframes;
286 enum PixelFormat pix_fmts[2];
290 typedef struct OutputFile {
291 AVFormatContext *ctx;
293 int ost_index; /* index of the first stream in output_streams */
294 int64_t recording_time; /* desired length of the resulting file in microseconds */
295 int64_t start_time; /* start time in microseconds */
296 uint64_t limit_filesize;
299 static InputStream **input_streams = NULL;
300 static int nb_input_streams = 0;
301 static InputFile **input_files = NULL;
302 static int nb_input_files = 0;
304 static OutputStream **output_streams = NULL;
305 static int nb_output_streams = 0;
306 static OutputFile **output_files = NULL;
307 static int nb_output_files = 0;
309 static FilterGraph **filtergraphs;
312 typedef struct OptionsContext {
313 /* input/output options */
317 SpecifierOpt *codec_names;
319 SpecifierOpt *audio_channels;
320 int nb_audio_channels;
321 SpecifierOpt *audio_sample_rate;
322 int nb_audio_sample_rate;
323 SpecifierOpt *frame_rates;
325 SpecifierOpt *frame_sizes;
327 SpecifierOpt *frame_pix_fmts;
328 int nb_frame_pix_fmts;
331 int64_t input_ts_offset;
334 SpecifierOpt *ts_scale;
336 SpecifierOpt *dump_attachment;
337 int nb_dump_attachment;
340 StreamMap *stream_maps;
342 /* first item specifies output metadata, second is input */
343 MetadataMap (*meta_data_maps)[2];
344 int nb_meta_data_maps;
345 int metadata_global_manual;
346 int metadata_streams_manual;
347 int metadata_chapters_manual;
348 const char **attachments;
351 int chapters_input_file;
353 int64_t recording_time;
354 uint64_t limit_filesize;
360 int subtitle_disable;
363 /* indexed by output file stream index */
367 SpecifierOpt *metadata;
369 SpecifierOpt *max_frames;
371 SpecifierOpt *bitstream_filters;
372 int nb_bitstream_filters;
373 SpecifierOpt *codec_tags;
375 SpecifierOpt *sample_fmts;
377 SpecifierOpt *qscale;
379 SpecifierOpt *forced_key_frames;
380 int nb_forced_key_frames;
381 SpecifierOpt *force_fps;
383 SpecifierOpt *frame_aspect_ratios;
384 int nb_frame_aspect_ratios;
385 SpecifierOpt *rc_overrides;
387 SpecifierOpt *intra_matrices;
388 int nb_intra_matrices;
389 SpecifierOpt *inter_matrices;
390 int nb_inter_matrices;
391 SpecifierOpt *top_field_first;
392 int nb_top_field_first;
393 SpecifierOpt *metadata_map;
395 SpecifierOpt *presets;
397 SpecifierOpt *copy_initial_nonkeyframes;
398 int nb_copy_initial_nonkeyframes;
399 SpecifierOpt *filters;
403 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
406 for (i = 0; i < o->nb_ ## name; i++) {\
407 char *spec = o->name[i].specifier;\
408 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
409 outvar = o->name[i].u.type;\
415 static void reset_options(OptionsContext *o)
417 const OptionDef *po = options;
420 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
422 void *dst = (uint8_t*)o + po->u.off;
424 if (po->flags & OPT_SPEC) {
425 SpecifierOpt **so = dst;
426 int i, *count = (int*)(so + 1);
427 for (i = 0; i < *count; i++) {
428 av_freep(&(*so)[i].specifier);
429 if (po->flags & OPT_STRING)
430 av_freep(&(*so)[i].u.str);
434 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
439 for (i = 0; i < o->nb_stream_maps; i++)
440 av_freep(&o->stream_maps[i].linklabel);
441 av_freep(&o->stream_maps);
442 av_freep(&o->meta_data_maps);
443 av_freep(&o->streamid_map);
445 memset(o, 0, sizeof(*o));
447 o->mux_max_delay = 0.7;
448 o->recording_time = INT64_MAX;
449 o->limit_filesize = UINT64_MAX;
450 o->chapters_input_file = INT_MAX;
457 * Define a function for building a string containing a list of
460 #define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator) \
461 static char *choose_ ## var ## s(OutputStream *ost) \
463 if (ost->st->codec->var != none) { \
464 get_name(ost->st->codec->var); \
465 return av_strdup(name); \
466 } else if (ost->enc->supported_list) { \
468 AVIOContext *s = NULL; \
472 if (avio_open_dyn_buf(&s) < 0) \
475 for (p = ost->enc->supported_list; *p != none; p++) { \
477 avio_printf(s, "%s" separator, name); \
479 len = avio_close_dyn_buf(s, &ret); \
486 #define GET_PIX_FMT_NAME(pix_fmt)\
487 const char *name = av_get_pix_fmt_name(pix_fmt);
489 DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
490 GET_PIX_FMT_NAME, ":")
492 #define GET_SAMPLE_FMT_NAME(sample_fmt)\
493 const char *name = av_get_sample_fmt_name(sample_fmt)
495 DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
496 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
498 #define GET_SAMPLE_RATE_NAME(rate)\
500 snprintf(name, sizeof(name), "%d", rate);
502 DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
503 GET_SAMPLE_RATE_NAME, ",")
505 #define GET_CH_LAYOUT_NAME(ch_layout)\
507 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
509 DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
510 GET_CH_LAYOUT_NAME, ",")
512 static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
514 FilterGraph *fg = av_mallocz(sizeof(*fg));
518 fg->index = nb_filtergraphs;
520 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
522 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
524 fg->outputs[0]->ost = ost;
525 fg->outputs[0]->graph = fg;
527 ost->filter = fg->outputs[0];
529 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
531 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
533 fg->inputs[0]->ist = ist;
534 fg->inputs[0]->graph = fg;
536 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
537 &ist->nb_filters, ist->nb_filters + 1);
538 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
540 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
541 &nb_filtergraphs, nb_filtergraphs + 1);
542 filtergraphs[nb_filtergraphs - 1] = fg;
547 static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
549 InputStream *ist = NULL;
550 enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
553 // TODO: support other filter types
554 if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
555 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
564 int file_idx = strtol(in->name, &p, 0);
566 if (file_idx < 0 || file_idx >= nb_input_files) {
567 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
568 file_idx, fg->graph_desc);
571 s = input_files[file_idx]->ctx;
573 for (i = 0; i < s->nb_streams; i++) {
574 if (s->streams[i]->codec->codec_type != type)
576 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
582 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
583 "matches no streams.\n", p, fg->graph_desc);
586 ist = input_streams[input_files[file_idx]->ist_index + st->index];
588 /* find the first unused stream of corresponding type */
589 for (i = 0; i < nb_input_streams; i++) {
590 ist = input_streams[i];
591 if (ist->st->codec->codec_type == type && ist->discard)
594 if (i == nb_input_streams) {
595 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
596 "unlabeled input pad %d on filter %s", in->pad_idx,
597 in->filter_ctx->name);
604 ist->decoding_needed = 1;
605 ist->st->discard = AVDISCARD_NONE;
607 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
608 &fg->nb_inputs, fg->nb_inputs + 1);
609 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
611 fg->inputs[fg->nb_inputs - 1]->ist = ist;
612 fg->inputs[fg->nb_inputs - 1]->graph = fg;
614 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
615 &ist->nb_filters, ist->nb_filters + 1);
616 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
619 static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
622 OutputStream *ost = ofilter->ost;
623 AVCodecContext *codec = ost->st->codec;
624 AVFilterContext *last_filter = out->filter_ctx;
625 int pad_idx = out->pad_idx;
629 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
630 ret = avfilter_graph_create_filter(&ofilter->filter,
631 avfilter_get_by_name("buffersink"),
632 name, NULL, pix_fmts, fg->graph);
636 if (codec->width || codec->height) {
638 AVFilterContext *filter;
640 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
643 (unsigned)ost->sws_flags);
644 snprintf(name, sizeof(name), "scaler for output stream %d:%d",
645 ost->file_index, ost->index);
646 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
647 name, args, NULL, fg->graph)) < 0)
649 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
652 last_filter = filter;
656 if ((pix_fmts = choose_pix_fmts(ost))) {
657 AVFilterContext *filter;
658 snprintf(name, sizeof(name), "pixel format for output stream %d:%d",
659 ost->file_index, ost->index);
660 if ((ret = avfilter_graph_create_filter(&filter,
661 avfilter_get_by_name("format"),
662 "format", pix_fmts, NULL,
665 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
668 last_filter = filter;
673 if (ost->frame_rate.num) {
674 AVFilterContext *fps;
677 snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
678 ost->frame_rate.den);
679 snprintf(name, sizeof(name), "fps for output stream %d:%d",
680 ost->file_index, ost->index);
681 ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
682 name, args, NULL, fg->graph);
686 ret = avfilter_link(last_filter, pad_idx, fps, 0);
693 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
699 static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
701 OutputStream *ost = ofilter->ost;
702 AVCodecContext *codec = ost->st->codec;
703 AVFilterContext *last_filter = out->filter_ctx;
704 int pad_idx = out->pad_idx;
705 char *sample_fmts, *sample_rates, *channel_layouts;
710 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
711 ret = avfilter_graph_create_filter(&ofilter->filter,
712 avfilter_get_by_name("abuffersink"),
713 name, NULL, NULL, fg->graph);
717 if (codec->channels && !codec->channel_layout)
718 codec->channel_layout = av_get_default_channel_layout(codec->channels);
720 sample_fmts = choose_sample_fmts(ost);
721 sample_rates = choose_sample_rates(ost);
722 channel_layouts = choose_channel_layouts(ost);
723 if (sample_fmts || sample_rates || channel_layouts) {
724 AVFilterContext *format;
729 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
732 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
735 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
739 av_freep(&sample_fmts);
740 av_freep(&sample_rates);
741 av_freep(&channel_layouts);
743 snprintf(name, sizeof(name), "audio format for output stream %d:%d",
744 ost->file_index, ost->index);
745 ret = avfilter_graph_create_filter(&format,
746 avfilter_get_by_name("aformat"),
747 name, args, NULL, fg->graph);
751 ret = avfilter_link(last_filter, pad_idx, format, 0);
755 last_filter = format;
759 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
765 #define DESCRIBE_FILTER_LINK(f, inout, in) \
767 AVFilterContext *ctx = inout->filter_ctx; \
768 AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads; \
769 int nb_pads = in ? ctx->input_count : ctx->output_count; \
772 if (avio_open_dyn_buf(&pb) < 0) \
775 avio_printf(pb, "%s", ctx->filter->name); \
777 avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
779 avio_close_dyn_buf(pb, &f->name); \
782 static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
784 av_freep(&ofilter->name);
785 DESCRIBE_FILTER_LINK(ofilter, out, 0);
787 switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
788 case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
789 case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
790 default: av_assert0(0);
794 static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
797 AVFilterContext *first_filter = in->filter_ctx;
798 AVFilter *filter = avfilter_get_by_name("buffer");
799 InputStream *ist = ifilter->ist;
800 AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
803 char args[255], name[255];
804 int pad_idx = in->pad_idx;
807 sar = ist->st->sample_aspect_ratio.num ?
808 ist->st->sample_aspect_ratio :
809 ist->st->codec->sample_aspect_ratio;
810 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
811 ist->st->codec->height, ist->st->codec->pix_fmt,
812 tb.num, tb.den, sar.num, sar.den);
813 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
814 ist->file_index, ist->st->index);
816 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, name,
817 args, NULL, fg->graph)) < 0)
820 if (ist->framerate.num) {
821 AVFilterContext *setpts;
823 snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
824 ist->file_index, ist->st->index);
825 if ((ret = avfilter_graph_create_filter(&setpts,
826 avfilter_get_by_name("setpts"),
831 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
834 first_filter = setpts;
838 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
843 static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
846 AVFilterContext *first_filter = in->filter_ctx;
847 AVFilter *filter = avfilter_get_by_name("abuffer");
848 InputStream *ist = ifilter->ist;
849 int pad_idx = in->pad_idx;
850 char args[255], name[255];
853 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
854 ":channel_layout=0x%"PRIx64,
855 1, ist->st->codec->sample_rate,
856 ist->st->codec->sample_rate,
857 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
858 ist->st->codec->channel_layout);
859 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
860 ist->file_index, ist->st->index);
862 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
867 if (audio_sync_method > 0) {
868 AVFilterContext *async;
872 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
873 "asyncts audio filter instead.\n");
875 if (audio_sync_method > 1)
876 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
877 "max_comp=%d:", audio_sync_method);
878 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
879 audio_drift_threshold);
881 snprintf(name, sizeof(name), "graph %d audio sync for input stream %d:%d",
882 fg->index, ist->file_index, ist->st->index);
883 ret = avfilter_graph_create_filter(&async,
884 avfilter_get_by_name("asyncts"),
885 name, args, NULL, fg->graph);
889 ret = avfilter_link(async, 0, first_filter, pad_idx);
893 first_filter = async;
896 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
902 static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
905 av_freep(&ifilter->name);
906 DESCRIBE_FILTER_LINK(ifilter, in, 1);
908 switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
909 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
910 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
911 default: av_assert0(0);
915 static int configure_filtergraph(FilterGraph *fg)
917 AVFilterInOut *inputs, *outputs, *cur;
918 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
919 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
922 avfilter_graph_free(&fg->graph);
923 if (!(fg->graph = avfilter_graph_alloc()))
924 return AVERROR(ENOMEM);
927 OutputStream *ost = fg->outputs[0]->ost;
929 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
930 fg->graph->scale_sws_opts = av_strdup(args);
933 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
936 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
937 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
938 "exactly one input and output.\n", graph_desc);
939 return AVERROR(EINVAL);
942 for (cur = inputs; !simple && init && cur; cur = cur->next)
943 init_input_filter(fg, cur);
945 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
946 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
948 avfilter_inout_free(&inputs);
950 if (!init || simple) {
951 /* we already know the mappings between lavfi outputs and output streams,
952 * so we can finish the setup */
953 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
954 configure_output_filter(fg, fg->outputs[i], cur);
955 avfilter_inout_free(&outputs);
957 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
960 /* wait until output mappings are processed */
961 for (cur = outputs; cur;) {
962 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
963 &fg->nb_outputs, fg->nb_outputs + 1);
964 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
966 fg->outputs[fg->nb_outputs - 1]->graph = fg;
967 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
969 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
976 static int configure_complex_filters(void)
980 for (i = 0; i < nb_filtergraphs; i++)
981 if (!filtergraphs[i]->graph &&
982 (ret = configure_filtergraph(filtergraphs[i])) < 0)
987 static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
990 for (i = 0; i < fg->nb_inputs; i++)
991 if (fg->inputs[i]->ist == ist)
996 static void term_exit(void)
998 av_log(NULL, AV_LOG_QUIET, "");
1001 static volatile int received_sigterm = 0;
1002 static volatile int received_nb_signals = 0;
1005 sigterm_handler(int sig)
1007 received_sigterm = sig;
1008 received_nb_signals++;
1012 static void term_init(void)
1014 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
1015 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1017 signal(SIGXCPU, sigterm_handler);
1021 static int decode_interrupt_cb(void *ctx)
1023 return received_nb_signals > 1;
1026 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1028 void exit_program(int ret)
1032 for (i = 0; i < nb_filtergraphs; i++) {
1033 avfilter_graph_free(&filtergraphs[i]->graph);
1034 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
1035 av_freep(&filtergraphs[i]->inputs[j]->name);
1036 av_freep(&filtergraphs[i]->inputs[j]);
1038 av_freep(&filtergraphs[i]->inputs);
1039 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
1040 av_freep(&filtergraphs[i]->outputs[j]->name);
1041 av_freep(&filtergraphs[i]->outputs[j]);
1043 av_freep(&filtergraphs[i]->outputs);
1044 av_freep(&filtergraphs[i]);
1046 av_freep(&filtergraphs);
1049 for (i = 0; i < nb_output_files; i++) {
1050 AVFormatContext *s = output_files[i]->ctx;
1051 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1053 avformat_free_context(s);
1054 av_dict_free(&output_files[i]->opts);
1055 av_freep(&output_files[i]);
1057 for (i = 0; i < nb_output_streams; i++) {
1058 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1060 AVBitStreamFilterContext *next = bsfc->next;
1061 av_bitstream_filter_close(bsfc);
1064 output_streams[i]->bitstream_filters = NULL;
1066 av_freep(&output_streams[i]->forced_keyframes);
1067 av_freep(&output_streams[i]->avfilter);
1068 av_freep(&output_streams[i]->filtered_frame);
1069 av_freep(&output_streams[i]);
1071 for (i = 0; i < nb_input_files; i++) {
1072 avformat_close_input(&input_files[i]->ctx);
1073 av_freep(&input_files[i]);
1075 for (i = 0; i < nb_input_streams; i++) {
1076 av_freep(&input_streams[i]->decoded_frame);
1077 av_dict_free(&input_streams[i]->opts);
1078 free_buffer_pool(&input_streams[i]->buffer_pool);
1079 av_freep(&input_streams[i]->filters);
1080 av_freep(&input_streams[i]);
1084 fclose(vstats_file);
1085 av_free(vstats_filename);
1087 av_freep(&input_streams);
1088 av_freep(&input_files);
1089 av_freep(&output_streams);
1090 av_freep(&output_files);
1095 avformat_network_deinit();
1097 if (received_sigterm) {
1098 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1099 (int) received_sigterm);
1106 static void assert_avoptions(AVDictionary *m)
1108 AVDictionaryEntry *t;
1109 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1110 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
1115 static void assert_codec_experimental(AVCodecContext *c, int encoder)
1117 const char *codec_string = encoder ? "encoder" : "decoder";
1119 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1120 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1121 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
1122 "results.\nAdd '-strict experimental' if you want to use it.\n",
1123 codec_string, c->codec->name);
1124 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1125 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
1126 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
1127 codec_string, codec->name);
1133 * Update the requested input sample format based on the output sample format.
1134 * This is currently only used to request float output from decoders which
1135 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
1136 * Ideally this will be removed in the future when decoders do not do format
1137 * conversion and only output in their native format.
1139 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
1140 AVCodecContext *enc)
1142 /* if sample formats match or a decoder sample format has already been
1143 requested, just return */
1144 if (enc->sample_fmt == dec->sample_fmt ||
1145 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
1148 /* if decoder supports more than one output format */
1149 if (dec_codec && dec_codec->sample_fmts &&
1150 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
1151 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
1152 const enum AVSampleFormat *p;
1153 int min_dec = -1, min_inc = -1;
1155 /* find a matching sample format in the encoder */
1156 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
1157 if (*p == enc->sample_fmt) {
1158 dec->request_sample_fmt = *p;
1160 } else if (*p > enc->sample_fmt) {
1161 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
1163 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
1166 /* if none match, provide the one that matches quality closest */
1167 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
1168 enc->sample_fmt - min_dec;
1172 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
1174 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1175 AVCodecContext *avctx = ost->st->codec;
1179 * Audio encoders may split the packets -- #frames in != #packets out.
1180 * But there is no reordering, so we can limit the number of output packets
1181 * by simply dropping them here.
1182 * Counting encoded video frames needs to be done separately because of
1183 * reordering, see do_video_out()
1185 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
1186 if (ost->frame_number >= ost->max_frames) {
1187 av_free_packet(pkt);
1190 ost->frame_number++;
1194 AVPacket new_pkt = *pkt;
1195 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1196 &new_pkt.data, &new_pkt.size,
1197 pkt->data, pkt->size,
1198 pkt->flags & AV_PKT_FLAG_KEY);
1200 av_free_packet(pkt);
1201 new_pkt.destruct = av_destruct_packet;
1203 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
1204 bsfc->filter->name, pkt->stream_index,
1205 avctx->codec ? avctx->codec->name : "copy");
1215 pkt->stream_index = ost->index;
1216 ret = av_interleaved_write_frame(s, pkt);
1218 print_error("av_interleaved_write_frame()", ret);
1223 static int check_recording_time(OutputStream *ost)
1225 OutputFile *of = output_files[ost->file_index];
1227 if (of->recording_time != INT64_MAX &&
1228 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1229 AV_TIME_BASE_Q) >= 0) {
1230 ost->is_past_recording_time = 1;
1236 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1239 AVCodecContext *enc = ost->st->codec;
1243 av_init_packet(&pkt);
1247 if (!check_recording_time(ost))
1250 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
1251 frame->pts = ost->sync_opts;
1252 ost->sync_opts = frame->pts + frame->nb_samples;
1254 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1255 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1260 if (pkt.pts != AV_NOPTS_VALUE)
1261 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1262 if (pkt.dts != AV_NOPTS_VALUE)
1263 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1264 if (pkt.duration > 0)
1265 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1267 write_frame(s, &pkt, ost);
1269 audio_size += pkt.size;
1273 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1275 AVCodecContext *dec;
1276 AVPicture *picture2;
1277 AVPicture picture_tmp;
1280 dec = ist->st->codec;
1282 /* deinterlace : must be done before any resize */
1283 if (do_deinterlace) {
1286 /* create temporary picture */
1287 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1288 buf = av_malloc(size);
1292 picture2 = &picture_tmp;
1293 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1295 if (avpicture_deinterlace(picture2, picture,
1296 dec->pix_fmt, dec->width, dec->height) < 0) {
1297 /* if error, do not deinterlace */
1298 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1307 if (picture != picture2)
1308 *picture = *picture2;
1312 static void do_subtitle_out(AVFormatContext *s,
1318 static uint8_t *subtitle_out = NULL;
1319 int subtitle_out_max_size = 1024 * 1024;
1320 int subtitle_out_size, nb, i;
1321 AVCodecContext *enc;
1324 if (pts == AV_NOPTS_VALUE) {
1325 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1331 enc = ost->st->codec;
1333 if (!subtitle_out) {
1334 subtitle_out = av_malloc(subtitle_out_max_size);
1337 /* Note: DVB subtitle need one packet to draw them and one other
1338 packet to clear them */
1339 /* XXX: signal it in the codec context ? */
1340 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1345 for (i = 0; i < nb; i++) {
1346 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1347 if (!check_recording_time(ost))
1350 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1351 // start_display_time is required to be 0
1352 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1353 sub->end_display_time -= sub->start_display_time;
1354 sub->start_display_time = 0;
1355 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1356 subtitle_out_max_size, sub);
1357 if (subtitle_out_size < 0) {
1358 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1362 av_init_packet(&pkt);
1363 pkt.data = subtitle_out;
1364 pkt.size = subtitle_out_size;
1365 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1366 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1367 /* XXX: the pts correction is handled here. Maybe handling
1368 it in the codec would be better */
1370 pkt.pts += 90 * sub->start_display_time;
1372 pkt.pts += 90 * sub->end_display_time;
1374 write_frame(s, &pkt, ost);
1378 static void do_video_out(AVFormatContext *s,
1380 AVFrame *in_picture,
1381 int *frame_size, float quality)
1383 int ret, format_video_sync;
1385 AVCodecContext *enc = ost->st->codec;
1389 format_video_sync = video_sync_method;
1390 if (format_video_sync == VSYNC_AUTO)
1391 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1392 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
1393 if (format_video_sync != VSYNC_PASSTHROUGH &&
1394 ost->frame_number &&
1395 in_picture->pts != AV_NOPTS_VALUE &&
1396 in_picture->pts < ost->sync_opts) {
1398 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1402 if (in_picture->pts == AV_NOPTS_VALUE)
1403 in_picture->pts = ost->sync_opts;
1404 ost->sync_opts = in_picture->pts;
1407 if (!ost->frame_number)
1408 ost->first_pts = in_picture->pts;
1410 av_init_packet(&pkt);
1414 if (!check_recording_time(ost) ||
1415 ost->frame_number >= ost->max_frames)
1418 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1419 enc->codec->id == CODEC_ID_RAWVIDEO) {
1420 /* raw pictures are written as AVPicture structure to
1421 avoid any copies. We support temporarily the older
1423 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1424 enc->coded_frame->top_field_first = in_picture->top_field_first;
1425 pkt.data = (uint8_t *)in_picture;
1426 pkt.size = sizeof(AVPicture);
1427 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1428 pkt.flags |= AV_PKT_FLAG_KEY;
1430 write_frame(s, &pkt, ost);
1433 AVFrame big_picture;
1435 big_picture = *in_picture;
1436 /* better than nothing: use input picture interlaced
1438 big_picture.interlaced_frame = in_picture->interlaced_frame;
1439 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1440 if (ost->top_field_first == -1)
1441 big_picture.top_field_first = in_picture->top_field_first;
1443 big_picture.top_field_first = !!ost->top_field_first;
1446 /* handles same_quant here. This is not correct because it may
1447 not be a global option */
1448 big_picture.quality = quality;
1449 if (!enc->me_threshold)
1450 big_picture.pict_type = 0;
1451 if (ost->forced_kf_index < ost->forced_kf_count &&
1452 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1453 big_picture.pict_type = AV_PICTURE_TYPE_I;
1454 ost->forced_kf_index++;
1456 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1458 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1463 if (pkt.pts != AV_NOPTS_VALUE)
1464 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1465 if (pkt.dts != AV_NOPTS_VALUE)
1466 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1468 write_frame(s, &pkt, ost);
1469 *frame_size = pkt.size;
1470 video_size += pkt.size;
1472 /* if two pass, output log */
1473 if (ost->logfile && enc->stats_out) {
1474 fprintf(ost->logfile, "%s", enc->stats_out);
1480 * For video, number of frames in == number of packets out.
1481 * But there may be reordering, so we can't throw away frames on encoder
1482 * flush, we need to limit them here, before they go into encoder.
1484 ost->frame_number++;
1487 static double psnr(double d)
1489 return -10.0 * log(d) / log(10.0);
1492 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1495 AVCodecContext *enc;
1497 double ti1, bitrate, avg_bitrate;
1499 /* this is executed just the first time do_video_stats is called */
1501 vstats_file = fopen(vstats_filename, "w");
1508 enc = ost->st->codec;
1509 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1510 frame_number = ost->frame_number;
1511 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1512 if (enc->flags&CODEC_FLAG_PSNR)
1513 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1515 fprintf(vstats_file,"f_size= %6d ", frame_size);
1516 /* compute pts value */
1517 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1521 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1522 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1523 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1524 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1525 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1529 /* check for new output on any of the filtergraphs */
1530 static int poll_filters(void)
1532 AVFilterBufferRef *picref;
1533 AVFrame *filtered_frame = NULL;
1536 for (i = 0; i < nb_output_streams; i++) {
1537 OutputStream *ost = output_streams[i];
1538 OutputFile *of = output_files[ost->file_index];
1544 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1545 return AVERROR(ENOMEM);
1547 avcodec_get_frame_defaults(ost->filtered_frame);
1548 filtered_frame = ost->filtered_frame;
1550 while (ret >= 0 && !ost->is_past_recording_time) {
1551 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1552 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1553 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
1554 ost->st->codec->frame_size);
1556 ret = av_buffersink_read(ost->filter->filter, &picref);
1558 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
1563 avfilter_copy_buf_props(filtered_frame, picref);
1564 if (picref->pts != AV_NOPTS_VALUE) {
1565 filtered_frame->pts = av_rescale_q(picref->pts,
1566 ost->filter->filter->inputs[0]->time_base,
1567 ost->st->codec->time_base) -
1568 av_rescale_q(of->start_time,
1570 ost->st->codec->time_base);
1572 if (of->start_time && filtered_frame->pts < 0) {
1573 avfilter_unref_buffer(picref);
1578 switch (ost->filter->filter->inputs[0]->type) {
1579 case AVMEDIA_TYPE_VIDEO:
1580 if (!ost->frame_aspect_ratio)
1581 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1583 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
1584 same_quant ? ost->last_quality :
1585 ost->st->codec->global_quality);
1586 if (vstats_filename && frame_size)
1587 do_video_stats(of->ctx, ost, frame_size);
1589 case AVMEDIA_TYPE_AUDIO:
1590 do_audio_out(of->ctx, ost, filtered_frame);
1593 // TODO support subtitle filters
1597 avfilter_unref_buffer(picref);
1603 static void print_report(int is_last_report, int64_t timer_start)
1607 AVFormatContext *oc;
1609 AVCodecContext *enc;
1610 int frame_number, vid, i;
1611 double bitrate, ti1, pts;
1612 static int64_t last_time = -1;
1613 static int qp_histogram[52];
1615 if (!print_stats && !is_last_report)
1618 if (!is_last_report) {
1620 /* display the report every 0.5 seconds */
1621 cur_time = av_gettime();
1622 if (last_time == -1) {
1623 last_time = cur_time;
1626 if ((cur_time - last_time) < 500000)
1628 last_time = cur_time;
1632 oc = output_files[0]->ctx;
1634 total_size = avio_size(oc->pb);
1635 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1636 total_size = avio_tell(oc->pb);
1641 for (i = 0; i < nb_output_streams; i++) {
1643 ost = output_streams[i];
1644 enc = ost->st->codec;
1645 if (!ost->stream_copy && enc->coded_frame)
1646 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1647 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1648 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1650 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1651 float t = (av_gettime() - timer_start) / 1000000.0;
1653 frame_number = ost->frame_number;
1654 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1655 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1657 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1661 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1663 for (j = 0; j < 32; j++)
1664 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1666 if (enc->flags&CODEC_FLAG_PSNR) {
1668 double error, error_sum = 0;
1669 double scale, scale_sum = 0;
1670 char type[3] = { 'Y','U','V' };
1671 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1672 for (j = 0; j < 3; j++) {
1673 if (is_last_report) {
1674 error = enc->error[j];
1675 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1677 error = enc->coded_frame->error[j];
1678 scale = enc->width * enc->height * 255.0 * 255.0;
1684 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1686 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1690 /* compute min output value */
1691 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1692 if ((pts < ti1) && (pts > 0))
1698 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1700 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1701 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1702 (double)total_size / 1024, ti1, bitrate);
1704 if (nb_frames_dup || nb_frames_drop)
1705 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1706 nb_frames_dup, nb_frames_drop);
1708 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1712 if (is_last_report) {
1713 int64_t raw= audio_size + video_size + extra_size;
1714 av_log(NULL, AV_LOG_INFO, "\n");
1715 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1716 video_size / 1024.0,
1717 audio_size / 1024.0,
1718 extra_size / 1024.0,
1719 100.0 * (total_size - raw) / raw
1724 static void flush_encoders(void)
1728 for (i = 0; i < nb_output_streams; i++) {
1729 OutputStream *ost = output_streams[i];
1730 AVCodecContext *enc = ost->st->codec;
1731 AVFormatContext *os = output_files[ost->file_index]->ctx;
1732 int stop_encoding = 0;
1734 if (!ost->encoding_needed)
1737 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1739 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1743 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1747 switch (ost->st->codec->codec_type) {
1748 case AVMEDIA_TYPE_AUDIO:
1749 encode = avcodec_encode_audio2;
1753 case AVMEDIA_TYPE_VIDEO:
1754 encode = avcodec_encode_video2;
1765 av_init_packet(&pkt);
1769 ret = encode(enc, &pkt, NULL, &got_packet);
1771 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1775 if (ost->logfile && enc->stats_out) {
1776 fprintf(ost->logfile, "%s", enc->stats_out);
1782 if (pkt.pts != AV_NOPTS_VALUE)
1783 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1784 if (pkt.dts != AV_NOPTS_VALUE)
1785 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1786 write_frame(os, &pkt, ost);
1796 * Check whether a packet from ist should be written into ost at this time
1798 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1800 OutputFile *of = output_files[ost->file_index];
1801 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1803 if (ost->source_index != ist_index)
1806 if (of->start_time && ist->last_dts < of->start_time)
1812 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1814 OutputFile *of = output_files[ost->file_index];
1815 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1818 av_init_packet(&opkt);
1820 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1821 !ost->copy_initial_nonkeyframes)
1824 if (of->recording_time != INT64_MAX &&
1825 ist->last_dts >= of->recording_time + of->start_time) {
1826 ost->is_past_recording_time = 1;
1830 /* force the input stream PTS */
1831 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1832 audio_size += pkt->size;
1833 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1834 video_size += pkt->size;
1838 if (pkt->pts != AV_NOPTS_VALUE)
1839 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1841 opkt.pts = AV_NOPTS_VALUE;
1843 if (pkt->dts == AV_NOPTS_VALUE)
1844 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1846 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1847 opkt.dts -= ost_tb_start_time;
1849 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1850 opkt.flags = pkt->flags;
1852 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1853 if ( ost->st->codec->codec_id != CODEC_ID_H264
1854 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1855 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1856 && ost->st->codec->codec_id != CODEC_ID_VC1
1858 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1859 opkt.destruct = av_destruct_packet;
1861 opkt.data = pkt->data;
1862 opkt.size = pkt->size;
1865 write_frame(of->ctx, &opkt, ost);
1866 ost->st->codec->frame_number++;
1867 av_free_packet(&opkt);
1870 static void rate_emu_sleep(InputStream *ist)
1872 if (input_files[ist->file_index]->rate_emu) {
1873 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
1874 int64_t now = av_gettime() - ist->start;
1876 av_usleep(pts - now);
1880 static int guess_input_channel_layout(InputStream *ist)
1882 AVCodecContext *dec = ist->st->codec;
1884 if (!dec->channel_layout) {
1885 char layout_name[256];
1887 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1888 if (!dec->channel_layout)
1890 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1891 dec->channels, dec->channel_layout);
1892 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1893 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1898 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1900 AVFrame *decoded_frame;
1901 AVCodecContext *avctx = ist->st->codec;
1902 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1903 int i, ret, resample_changed;
1905 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1906 return AVERROR(ENOMEM);
1908 avcodec_get_frame_defaults(ist->decoded_frame);
1909 decoded_frame = ist->decoded_frame;
1911 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1917 /* no audio frame */
1919 for (i = 0; i < ist->nb_filters; i++)
1920 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
1924 /* if the decoder provides a pts, use it instead of the last packet pts.
1925 the decoder could be delaying output by a packet or more. */
1926 if (decoded_frame->pts != AV_NOPTS_VALUE)
1927 ist->next_dts = decoded_frame->pts;
1928 else if (pkt->pts != AV_NOPTS_VALUE) {
1929 decoded_frame->pts = pkt->pts;
1930 pkt->pts = AV_NOPTS_VALUE;
1933 // preprocess audio (volume)
1934 if (audio_volume != 256) {
1935 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1936 void *samples = decoded_frame->data[0];
1937 switch (avctx->sample_fmt) {
1938 case AV_SAMPLE_FMT_U8:
1940 uint8_t *volp = samples;
1941 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1942 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1943 *volp++ = av_clip_uint8(v);
1947 case AV_SAMPLE_FMT_S16:
1949 int16_t *volp = samples;
1950 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1951 int v = ((*volp) * audio_volume + 128) >> 8;
1952 *volp++ = av_clip_int16(v);
1956 case AV_SAMPLE_FMT_S32:
1958 int32_t *volp = samples;
1959 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1960 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1961 *volp++ = av_clipl_int32(v);
1965 case AV_SAMPLE_FMT_FLT:
1967 float *volp = samples;
1968 float scale = audio_volume / 256.f;
1969 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1974 case AV_SAMPLE_FMT_DBL:
1976 double *volp = samples;
1977 double scale = audio_volume / 256.;
1978 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1984 av_log(NULL, AV_LOG_FATAL,
1985 "Audio volume adjustment on sample format %s is not supported.\n",
1986 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1991 rate_emu_sleep(ist);
1993 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1994 ist->resample_channels != avctx->channels ||
1995 ist->resample_channel_layout != decoded_frame->channel_layout ||
1996 ist->resample_sample_rate != decoded_frame->sample_rate;
1997 if (resample_changed) {
1998 char layout1[64], layout2[64];
2000 if (!guess_input_channel_layout(ist)) {
2001 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2002 "layout for Input Stream #%d.%d\n", ist->file_index,
2006 decoded_frame->channel_layout = avctx->channel_layout;
2008 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
2009 ist->resample_channel_layout);
2010 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
2011 decoded_frame->channel_layout);
2013 av_log(NULL, AV_LOG_INFO,
2014 "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
2015 ist->file_index, ist->st->index,
2016 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2017 ist->resample_channels, layout1,
2018 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2019 avctx->channels, layout2);
2021 ist->resample_sample_fmt = decoded_frame->format;
2022 ist->resample_sample_rate = decoded_frame->sample_rate;
2023 ist->resample_channel_layout = decoded_frame->channel_layout;
2024 ist->resample_channels = avctx->channels;
2026 for (i = 0; i < nb_filtergraphs; i++)
2027 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2028 configure_filtergraph(filtergraphs[i]) < 0) {
2029 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2034 if (decoded_frame->pts != AV_NOPTS_VALUE)
2035 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
2037 (AVRational){1, ist->st->codec->sample_rate});
2038 for (i = 0; i < ist->nb_filters; i++)
2039 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2044 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
2046 AVFrame *decoded_frame;
2047 void *buffer_to_free = NULL;
2048 int i, ret = 0, resample_changed;
2051 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
2052 return AVERROR(ENOMEM);
2054 avcodec_get_frame_defaults(ist->decoded_frame);
2055 decoded_frame = ist->decoded_frame;
2057 ret = avcodec_decode_video2(ist->st->codec,
2058 decoded_frame, got_output, pkt);
2062 quality = same_quant ? decoded_frame->quality : 0;
2064 /* no picture yet */
2066 for (i = 0; i < ist->nb_filters; i++)
2067 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
2070 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
2071 decoded_frame->pkt_dts);
2073 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2075 rate_emu_sleep(ist);
2077 if (ist->st->sample_aspect_ratio.num)
2078 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2080 resample_changed = ist->resample_width != decoded_frame->width ||
2081 ist->resample_height != decoded_frame->height ||
2082 ist->resample_pix_fmt != decoded_frame->format;
2083 if (resample_changed) {
2084 av_log(NULL, AV_LOG_INFO,
2085 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2086 ist->file_index, ist->st->index,
2087 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
2088 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2090 ist->resample_width = decoded_frame->width;
2091 ist->resample_height = decoded_frame->height;
2092 ist->resample_pix_fmt = decoded_frame->format;
2094 for (i = 0; i < nb_filtergraphs; i++)
2095 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2096 configure_filtergraph(filtergraphs[i]) < 0) {
2097 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2102 for (i = 0; i < ist->nb_filters; i++) {
2103 // XXX what an ugly hack
2104 if (ist->filters[i]->graph->nb_outputs == 1)
2105 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
2107 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
2108 FrameBuffer *buf = decoded_frame->opaque;
2109 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2110 decoded_frame->data, decoded_frame->linesize,
2111 AV_PERM_READ | AV_PERM_PRESERVE,
2112 ist->st->codec->width, ist->st->codec->height,
2113 ist->st->codec->pix_fmt);
2115 avfilter_copy_frame_props(fb, decoded_frame);
2116 fb->buf->priv = buf;
2117 fb->buf->free = filter_release_buffer;
2120 av_buffersrc_buffer(ist->filters[i]->filter, fb);
2122 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2125 av_free(buffer_to_free);
2129 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2131 AVSubtitle subtitle;
2132 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2133 &subtitle, got_output, pkt);
2139 rate_emu_sleep(ist);
2141 for (i = 0; i < nb_output_streams; i++) {
2142 OutputStream *ost = output_streams[i];
2144 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2147 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
2150 avsubtitle_free(&subtitle);
2154 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2155 static int output_packet(InputStream *ist, const AVPacket *pkt)
2161 if (ist->next_dts == AV_NOPTS_VALUE)
2162 ist->next_dts = ist->last_dts;
2166 av_init_packet(&avpkt);
2174 if (pkt->dts != AV_NOPTS_VALUE)
2175 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2177 // while we have more to decode or while the decoder did output something on EOF
2178 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2182 ist->last_dts = ist->next_dts;
2184 if (avpkt.size && avpkt.size != pkt->size) {
2185 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2186 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2187 ist->showed_multi_packet_warning = 1;
2190 switch (ist->st->codec->codec_type) {
2191 case AVMEDIA_TYPE_AUDIO:
2192 ret = decode_audio (ist, &avpkt, &got_output);
2194 case AVMEDIA_TYPE_VIDEO:
2195 ret = decode_video (ist, &avpkt, &got_output);
2197 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2198 else if (ist->st->avg_frame_rate.num)
2199 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
2201 else if (ist->st->codec->time_base.num != 0) {
2202 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2203 ist->st->codec->ticks_per_frame;
2204 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2207 case AVMEDIA_TYPE_SUBTITLE:
2208 ret = transcode_subtitles(ist, &avpkt, &got_output);
2216 // touch data and size only if not EOF
2226 /* handle stream copy */
2227 if (!ist->decoding_needed) {
2228 rate_emu_sleep(ist);
2229 ist->last_dts = ist->next_dts;
2230 switch (ist->st->codec->codec_type) {
2231 case AVMEDIA_TYPE_AUDIO:
2232 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2233 ist->st->codec->sample_rate;
2235 case AVMEDIA_TYPE_VIDEO:
2236 if (ist->st->codec->time_base.num != 0) {
2237 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2238 ist->next_dts += ((int64_t)AV_TIME_BASE *
2239 ist->st->codec->time_base.num * ticks) /
2240 ist->st->codec->time_base.den;
2245 for (i = 0; pkt && i < nb_output_streams; i++) {
2246 OutputStream *ost = output_streams[i];
2248 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2251 do_streamcopy(ist, ost, pkt);
2257 static void print_sdp(void)
2261 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
2265 for (i = 0; i < nb_output_files; i++)
2266 avc[i] = output_files[i]->ctx;
2268 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2269 printf("SDP:\n%s\n", sdp);
2274 static int init_input_stream(int ist_index, char *error, int error_len)
2277 InputStream *ist = input_streams[ist_index];
2278 if (ist->decoding_needed) {
2279 AVCodec *codec = ist->dec;
2281 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2282 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2283 return AVERROR(EINVAL);
2286 /* update requested sample format for the decoder based on the
2287 corresponding encoder sample format */
2288 for (i = 0; i < nb_output_streams; i++) {
2289 OutputStream *ost = output_streams[i];
2290 if (ost->source_index == ist_index) {
2291 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2296 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2297 ist->st->codec->get_buffer = codec_get_buffer;
2298 ist->st->codec->release_buffer = codec_release_buffer;
2299 ist->st->codec->opaque = &ist->buffer_pool;
2302 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2303 av_dict_set(&ist->opts, "threads", "auto", 0);
2304 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2305 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2306 ist->file_index, ist->st->index);
2307 return AVERROR(EINVAL);
2309 assert_codec_experimental(ist->st->codec, 0);
2310 assert_avoptions(ist->opts);
2313 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2314 ist->next_dts = AV_NOPTS_VALUE;
2315 init_pts_correction(&ist->pts_ctx);
2321 static InputStream *get_input_stream(OutputStream *ost)
2323 if (ost->source_index >= 0)
2324 return input_streams[ost->source_index];
2327 FilterGraph *fg = ost->filter->graph;
2330 for (i = 0; i < fg->nb_inputs; i++)
2331 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
2332 return fg->inputs[i]->ist;
2338 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2339 AVCodecContext *avctx)
2345 for (p = kf; *p; p++)
2348 ost->forced_kf_count = n;
2349 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2350 if (!ost->forced_kf_pts) {
2351 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2356 for (i = 0; i < n; i++) {
2357 char *next = strchr(p, ',');
2362 t = parse_time_or_die("force_key_frames", p, 1);
2363 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2369 static int transcode_init(void)
2371 int ret = 0, i, j, k;
2372 AVFormatContext *oc;
2373 AVCodecContext *codec, *icodec;
2379 /* init framerate emulation */
2380 for (i = 0; i < nb_input_files; i++) {
2381 InputFile *ifile = input_files[i];
2382 if (ifile->rate_emu)
2383 for (j = 0; j < ifile->nb_streams; j++)
2384 input_streams[j + ifile->ist_index]->start = av_gettime();
2387 /* output stream init */
2388 for (i = 0; i < nb_output_files; i++) {
2389 oc = output_files[i]->ctx;
2390 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2391 av_dump_format(oc, i, oc->filename, 1);
2392 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2393 return AVERROR(EINVAL);
2397 /* init complex filtergraphs */
2398 for (i = 0; i < nb_filtergraphs; i++)
2399 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2402 /* for each output stream, we compute the right encoding parameters */
2403 for (i = 0; i < nb_output_streams; i++) {
2404 ost = output_streams[i];
2405 oc = output_files[ost->file_index]->ctx;
2406 ist = get_input_stream(ost);
2408 if (ost->attachment_filename)
2411 codec = ost->st->codec;
2414 icodec = ist->st->codec;
2416 ost->st->disposition = ist->st->disposition;
2417 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2418 codec->chroma_sample_location = icodec->chroma_sample_location;
2421 if (ost->stream_copy) {
2422 uint64_t extra_size;
2424 av_assert0(ist && !ost->filter);
2426 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2428 if (extra_size > INT_MAX) {
2429 return AVERROR(EINVAL);
2432 /* if stream_copy is selected, no need to decode or encode */
2433 codec->codec_id = icodec->codec_id;
2434 codec->codec_type = icodec->codec_type;
2436 if (!codec->codec_tag) {
2437 if (!oc->oformat->codec_tag ||
2438 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2439 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2440 codec->codec_tag = icodec->codec_tag;
2443 codec->bit_rate = icodec->bit_rate;
2444 codec->rc_max_rate = icodec->rc_max_rate;
2445 codec->rc_buffer_size = icodec->rc_buffer_size;
2446 codec->field_order = icodec->field_order;
2447 codec->extradata = av_mallocz(extra_size);
2448 if (!codec->extradata) {
2449 return AVERROR(ENOMEM);
2451 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2452 codec->extradata_size = icodec->extradata_size;
2454 codec->time_base = icodec->time_base;
2455 codec->time_base.num *= icodec->ticks_per_frame;
2456 av_reduce(&codec->time_base.num, &codec->time_base.den,
2457 codec->time_base.num, codec->time_base.den, INT_MAX);
2459 codec->time_base = ist->st->time_base;
2461 switch (codec->codec_type) {
2462 case AVMEDIA_TYPE_AUDIO:
2463 if (audio_volume != 256) {
2464 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2467 codec->channel_layout = icodec->channel_layout;
2468 codec->sample_rate = icodec->sample_rate;
2469 codec->channels = icodec->channels;
2470 codec->frame_size = icodec->frame_size;
2471 codec->audio_service_type = icodec->audio_service_type;
2472 codec->block_align = icodec->block_align;
2474 case AVMEDIA_TYPE_VIDEO:
2475 codec->pix_fmt = icodec->pix_fmt;
2476 codec->width = icodec->width;
2477 codec->height = icodec->height;
2478 codec->has_b_frames = icodec->has_b_frames;
2479 if (!codec->sample_aspect_ratio.num) {
2480 codec->sample_aspect_ratio =
2481 ost->st->sample_aspect_ratio =
2482 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2483 ist->st->codec->sample_aspect_ratio.num ?
2484 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2487 case AVMEDIA_TYPE_SUBTITLE:
2488 codec->width = icodec->width;
2489 codec->height = icodec->height;
2491 case AVMEDIA_TYPE_DATA:
2492 case AVMEDIA_TYPE_ATTACHMENT:
2499 /* should only happen when a default codec is not present. */
2500 snprintf(error, sizeof(error), "Automatic encoder selection "
2501 "failed for output stream #%d:%d. Default encoder for "
2502 "format %s is probably disabled. Please choose an "
2503 "encoder manually.\n", ost->file_index, ost->index,
2505 ret = AVERROR(EINVAL);
2510 ist->decoding_needed = 1;
2511 ost->encoding_needed = 1;
2514 * We want CFR output if and only if one of those is true:
2515 * 1) user specified output framerate with -r
2516 * 2) user specified -vsync cfr
2517 * 3) output format is CFR and the user didn't force vsync to
2518 * something else than CFR
2520 * in such a case, set ost->frame_rate
2522 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
2523 !ost->frame_rate.num && ist &&
2524 (video_sync_method == VSYNC_CFR ||
2525 (video_sync_method == VSYNC_AUTO &&
2526 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2527 ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2528 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2529 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2530 ost->frame_rate = ost->enc->supported_framerates[idx];
2535 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2536 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2538 fg = init_simple_filtergraph(ist, ost);
2539 if (configure_filtergraph(fg)) {
2540 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2545 switch (codec->codec_type) {
2546 case AVMEDIA_TYPE_AUDIO:
2547 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2548 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2549 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2550 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2551 codec->time_base = (AVRational){ 1, codec->sample_rate };
2553 case AVMEDIA_TYPE_VIDEO:
2554 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2556 codec->width = ost->filter->filter->inputs[0]->w;
2557 codec->height = ost->filter->filter->inputs[0]->h;
2558 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2559 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2560 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2561 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2562 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2564 if (codec->width != icodec->width ||
2565 codec->height != icodec->height ||
2566 codec->pix_fmt != icodec->pix_fmt) {
2567 codec->bits_per_raw_sample = 0;
2570 if (ost->forced_keyframes)
2571 parse_forced_key_frames(ost->forced_keyframes, ost,
2574 case AVMEDIA_TYPE_SUBTITLE:
2575 codec->time_base = (AVRational){1, 1000};
2582 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2583 char logfilename[1024];
2586 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2587 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2589 if (!strcmp(ost->enc->name, "libx264")) {
2590 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2592 if (codec->flags & CODEC_FLAG_PASS1) {
2593 f = fopen(logfilename, "wb");
2595 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2596 logfilename, strerror(errno));
2602 size_t logbuffer_size;
2603 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2604 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2608 codec->stats_in = logbuffer;
2615 /* open each encoder */
2616 for (i = 0; i < nb_output_streams; i++) {
2617 ost = output_streams[i];
2618 if (ost->encoding_needed) {
2619 AVCodec *codec = ost->enc;
2620 AVCodecContext *dec = NULL;
2622 if ((ist = get_input_stream(ost)))
2623 dec = ist->st->codec;
2624 if (dec && dec->subtitle_header) {
2625 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2626 if (!ost->st->codec->subtitle_header) {
2627 ret = AVERROR(ENOMEM);
2630 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2631 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2633 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2634 av_dict_set(&ost->opts, "threads", "auto", 0);
2635 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2636 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2637 ost->file_index, ost->index);
2638 ret = AVERROR(EINVAL);
2641 assert_codec_experimental(ost->st->codec, 1);
2642 assert_avoptions(ost->opts);
2643 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2644 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2645 "It takes bits/s as argument, not kbits/s\n");
2646 extra_size += ost->st->codec->extradata_size;
2648 if (ost->st->codec->me_threshold)
2649 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2653 /* init input streams */
2654 for (i = 0; i < nb_input_streams; i++)
2655 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2658 /* discard unused programs */
2659 for (i = 0; i < nb_input_files; i++) {
2660 InputFile *ifile = input_files[i];
2661 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2662 AVProgram *p = ifile->ctx->programs[j];
2663 int discard = AVDISCARD_ALL;
2665 for (k = 0; k < p->nb_stream_indexes; k++)
2666 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2667 discard = AVDISCARD_DEFAULT;
2670 p->discard = discard;
2674 /* open files and write file headers */
2675 for (i = 0; i < nb_output_files; i++) {
2676 oc = output_files[i]->ctx;
2677 oc->interrupt_callback = int_cb;
2678 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2680 const char *errbuf_ptr = errbuf;
2681 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2682 errbuf_ptr = strerror(AVUNERROR(ret));
2683 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2684 ret = AVERROR(EINVAL);
2687 assert_avoptions(output_files[i]->opts);
2688 if (strcmp(oc->oformat->name, "rtp")) {
2694 /* dump the file output parameters - cannot be done before in case
2696 for (i = 0; i < nb_output_files; i++) {
2697 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2700 /* dump the stream mapping */
2701 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2702 for (i = 0; i < nb_input_streams; i++) {
2703 ist = input_streams[i];
2705 for (j = 0; j < ist->nb_filters; j++) {
2706 if (ist->filters[j]->graph->graph_desc) {
2707 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2708 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2709 ist->filters[j]->name);
2710 if (nb_filtergraphs > 1)
2711 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2712 av_log(NULL, AV_LOG_INFO, "\n");
2717 for (i = 0; i < nb_output_streams; i++) {
2718 ost = output_streams[i];
2720 if (ost->attachment_filename) {
2721 /* an attached file */
2722 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2723 ost->attachment_filename, ost->file_index, ost->index);
2727 if (ost->filter && ost->filter->graph->graph_desc) {
2728 /* output from a complex graph */
2729 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2730 if (nb_filtergraphs > 1)
2731 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2733 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2734 ost->index, ost->enc ? ost->enc->name : "?");
2738 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2739 input_streams[ost->source_index]->file_index,
2740 input_streams[ost->source_index]->st->index,
2743 if (ost->sync_ist != input_streams[ost->source_index])
2744 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2745 ost->sync_ist->file_index,
2746 ost->sync_ist->st->index);
2747 if (ost->stream_copy)
2748 av_log(NULL, AV_LOG_INFO, " (copy)");
2750 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2751 input_streams[ost->source_index]->dec->name : "?",
2752 ost->enc ? ost->enc->name : "?");
2753 av_log(NULL, AV_LOG_INFO, "\n");
2757 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2769 * @return 1 if there are still streams where more output is wanted,
2772 static int need_output(void)
2776 for (i = 0; i < nb_output_streams; i++) {
2777 OutputStream *ost = output_streams[i];
2778 OutputFile *of = output_files[ost->file_index];
2779 AVFormatContext *os = output_files[ost->file_index]->ctx;
2781 if (ost->is_past_recording_time ||
2782 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2784 if (ost->frame_number >= ost->max_frames) {
2786 for (j = 0; j < of->ctx->nb_streams; j++)
2787 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2797 static int select_input_file(uint8_t *no_packet)
2799 int64_t ipts_min = INT64_MAX;
2800 int i, file_index = -1;
2802 for (i = 0; i < nb_input_streams; i++) {
2803 InputStream *ist = input_streams[i];
2804 int64_t ipts = ist->last_dts;
2806 if (ist->discard || no_packet[ist->file_index])
2808 if (!input_files[ist->file_index]->eof_reached) {
2809 if (ipts < ipts_min) {
2811 file_index = ist->file_index;
2820 static void *input_thread(void *arg)
2825 while (!transcoding_finished && ret >= 0) {
2827 ret = av_read_frame(f->ctx, &pkt);
2829 if (ret == AVERROR(EAGAIN)) {
2836 pthread_mutex_lock(&f->fifo_lock);
2837 while (!av_fifo_space(f->fifo))
2838 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2840 av_dup_packet(&pkt);
2841 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2843 pthread_mutex_unlock(&f->fifo_lock);
2850 static void free_input_threads(void)
2854 if (nb_input_files == 1)
2857 transcoding_finished = 1;
2859 for (i = 0; i < nb_input_files; i++) {
2860 InputFile *f = input_files[i];
2863 if (!f->fifo || f->joined)
2866 pthread_mutex_lock(&f->fifo_lock);
2867 while (av_fifo_size(f->fifo)) {
2868 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2869 av_free_packet(&pkt);
2871 pthread_cond_signal(&f->fifo_cond);
2872 pthread_mutex_unlock(&f->fifo_lock);
2874 pthread_join(f->thread, NULL);
2877 while (av_fifo_size(f->fifo)) {
2878 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2879 av_free_packet(&pkt);
2881 av_fifo_free(f->fifo);
2885 static int init_input_threads(void)
2889 if (nb_input_files == 1)
2892 for (i = 0; i < nb_input_files; i++) {
2893 InputFile *f = input_files[i];
2895 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2896 return AVERROR(ENOMEM);
2898 pthread_mutex_init(&f->fifo_lock, NULL);
2899 pthread_cond_init (&f->fifo_cond, NULL);
2901 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2902 return AVERROR(ret);
2907 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2911 pthread_mutex_lock(&f->fifo_lock);
2913 if (av_fifo_size(f->fifo)) {
2914 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2915 pthread_cond_signal(&f->fifo_cond);
2920 ret = AVERROR(EAGAIN);
2923 pthread_mutex_unlock(&f->fifo_lock);
2929 static int get_input_packet(InputFile *f, AVPacket *pkt)
2932 if (nb_input_files > 1)
2933 return get_input_packet_mt(f, pkt);
2935 return av_read_frame(f->ctx, pkt);
2939 * The following code is the main loop of the file converter
2941 static int transcode(void)
2944 AVFormatContext *is, *os;
2948 int no_packet_count = 0;
2949 int64_t timer_start;
2951 if (!(no_packet = av_mallocz(nb_input_files)))
2954 ret = transcode_init();
2958 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2961 timer_start = av_gettime();
2964 if ((ret = init_input_threads()) < 0)
2968 for (; received_sigterm == 0;) {
2969 int file_index, ist_index;
2972 /* check if there's any stream where output is still needed */
2973 if (!need_output()) {
2974 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2978 /* select the stream that we must read now */
2979 file_index = select_input_file(no_packet);
2980 /* if none, if is finished */
2981 if (file_index < 0) {
2982 if (no_packet_count) {
2983 no_packet_count = 0;
2984 memset(no_packet, 0, nb_input_files);
2988 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2992 is = input_files[file_index]->ctx;
2993 ret = get_input_packet(input_files[file_index], &pkt);
2995 if (ret == AVERROR(EAGAIN)) {
2996 no_packet[file_index] = 1;
3001 if (ret != AVERROR_EOF) {
3002 print_error(is->filename, ret);
3006 input_files[file_index]->eof_reached = 1;
3008 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
3009 ist = input_streams[input_files[file_index]->ist_index + i];
3010 if (ist->decoding_needed)
3011 output_packet(ist, NULL);
3020 no_packet_count = 0;
3021 memset(no_packet, 0, nb_input_files);
3024 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3025 is->streams[pkt.stream_index]);
3027 /* the following test is needed in case new streams appear
3028 dynamically in stream : we ignore them */
3029 if (pkt.stream_index >= input_files[file_index]->nb_streams)
3030 goto discard_packet;
3031 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
3032 ist = input_streams[ist_index];
3034 goto discard_packet;
3036 if (pkt.dts != AV_NOPTS_VALUE)
3037 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3038 if (pkt.pts != AV_NOPTS_VALUE)
3039 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3041 if (pkt.pts != AV_NOPTS_VALUE)
3042 pkt.pts *= ist->ts_scale;
3043 if (pkt.dts != AV_NOPTS_VALUE)
3044 pkt.dts *= ist->ts_scale;
3046 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3048 // pkt.dts, input_files[ist->file_index].ts_offset,
3049 // ist->st->codec->codec_type);
3050 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
3051 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3052 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3053 int64_t delta = pkt_dts - ist->next_dts;
3054 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
3055 input_files[ist->file_index]->ts_offset -= delta;
3056 av_log(NULL, AV_LOG_DEBUG,
3057 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3058 delta, input_files[ist->file_index]->ts_offset);
3059 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3060 if (pkt.pts != AV_NOPTS_VALUE)
3061 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3065 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
3066 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
3067 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
3068 ist->file_index, ist->st->index);
3071 av_free_packet(&pkt);
3076 av_free_packet(&pkt);
3078 /* dump report by using the output first video and audio streams */
3079 print_report(0, timer_start);
3082 free_input_threads();
3085 /* at the end of stream, we must flush the decoder buffers */
3086 for (i = 0; i < nb_input_streams; i++) {
3087 ist = input_streams[i];
3088 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3089 output_packet(ist, NULL);
3097 /* write the trailer if needed and close file */
3098 for (i = 0; i < nb_output_files; i++) {
3099 os = output_files[i]->ctx;
3100 av_write_trailer(os);
3103 /* dump report by using the first video and audio streams */
3104 print_report(1, timer_start);
3106 /* close each encoder */
3107 for (i = 0; i < nb_output_streams; i++) {
3108 ost = output_streams[i];
3109 if (ost->encoding_needed) {
3110 av_freep(&ost->st->codec->stats_in);
3111 avcodec_close(ost->st->codec);
3115 /* close each decoder */
3116 for (i = 0; i < nb_input_streams; i++) {
3117 ist = input_streams[i];
3118 if (ist->decoding_needed) {
3119 avcodec_close(ist->st->codec);
3127 av_freep(&no_packet);
3129 free_input_threads();
3132 if (output_streams) {
3133 for (i = 0; i < nb_output_streams; i++) {
3134 ost = output_streams[i];
3136 if (ost->stream_copy)
3137 av_freep(&ost->st->codec->extradata);
3139 fclose(ost->logfile);
3140 ost->logfile = NULL;
3142 av_freep(&ost->st->codec->subtitle_header);
3143 av_free(ost->forced_kf_pts);
3144 av_dict_free(&ost->opts);
3151 static double parse_frame_aspect_ratio(const char *arg)
3158 p = strchr(arg, ':');
3160 x = strtol(arg, &end, 10);
3162 y = strtol(end + 1, &end, 10);
3164 ar = (double)x / (double)y;
3166 ar = strtod(arg, NULL);
3169 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
3175 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
3177 return parse_option(o, "codec:a", arg, options);
3180 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
3182 return parse_option(o, "codec:v", arg, options);
3185 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
3187 return parse_option(o, "codec:s", arg, options);
3190 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
3192 return parse_option(o, "codec:d", arg, options);
3195 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
3197 StreamMap *m = NULL;
3198 int i, negative = 0, file_idx;
3199 int sync_file_idx = -1, sync_stream_idx;
3207 map = av_strdup(arg);
3209 /* parse sync stream first, just pick first matching stream */
3210 if (sync = strchr(map, ',')) {
3212 sync_file_idx = strtol(sync + 1, &sync, 0);
3213 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
3214 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
3219 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
3220 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
3221 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
3222 sync_stream_idx = i;
3225 if (i == input_files[sync_file_idx]->nb_streams) {
3226 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
3227 "match any streams.\n", arg);
3233 if (map[0] == '[') {
3234 /* this mapping refers to lavfi output */
3235 const char *c = map + 1;
3236 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3237 &o->nb_stream_maps, o->nb_stream_maps + 1);
3238 m = &o->stream_maps[o->nb_stream_maps - 1];
3239 m->linklabel = av_get_token(&c, "]");
3240 if (!m->linklabel) {
3241 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
3245 file_idx = strtol(map, &p, 0);
3246 if (file_idx >= nb_input_files || file_idx < 0) {
3247 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3251 /* disable some already defined maps */
3252 for (i = 0; i < o->nb_stream_maps; i++) {
3253 m = &o->stream_maps[i];
3254 if (file_idx == m->file_index &&
3255 check_stream_specifier(input_files[m->file_index]->ctx,
3256 input_files[m->file_index]->ctx->streams[m->stream_index],
3257 *p == ':' ? p + 1 : p) > 0)
3261 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
3262 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
3263 *p == ':' ? p + 1 : p) <= 0)
3265 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3266 &o->nb_stream_maps, o->nb_stream_maps + 1);
3267 m = &o->stream_maps[o->nb_stream_maps - 1];
3269 m->file_index = file_idx;
3270 m->stream_index = i;
3272 if (sync_file_idx >= 0) {
3273 m->sync_file_index = sync_file_idx;
3274 m->sync_stream_index = sync_stream_idx;
3276 m->sync_file_index = file_idx;
3277 m->sync_stream_index = i;
3283 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
3291 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3293 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3294 &o->nb_attachments, o->nb_attachments + 1);
3295 o->attachments[o->nb_attachments - 1] = arg;
3300 * Parse a metadata specifier in arg.
3301 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3302 * @param index for type c/p, chapter/program index is written here
3303 * @param stream_spec for type s, the stream specifier is written here
3305 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
3313 if (*(++arg) && *arg != ':') {
3314 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3317 *stream_spec = *arg == ':' ? arg + 1 : "";
3321 if (*(++arg) == ':')
3322 *index = strtol(++arg, NULL, 0);
3325 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
3332 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
3334 AVDictionary **meta_in = NULL;
3335 AVDictionary **meta_out;
3337 char type_in, type_out;
3338 const char *istream_spec = NULL, *ostream_spec = NULL;
3339 int idx_in = 0, idx_out = 0;
3341 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3342 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
3344 if (type_in == 'g' || type_out == 'g')
3345 o->metadata_global_manual = 1;
3346 if (type_in == 's' || type_out == 's')
3347 o->metadata_streams_manual = 1;
3348 if (type_in == 'c' || type_out == 'c')
3349 o->metadata_chapters_manual = 1;
3351 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3352 if ((index) < 0 || (index) >= (nb_elems)) {\
3353 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3358 #define SET_DICT(type, meta, context, index)\
3361 meta = &context->metadata;\
3364 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3365 meta = &context->chapters[index]->metadata;\
3368 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3369 meta = &context->programs[index]->metadata;\
3371 default: av_assert0(0);\
3374 SET_DICT(type_in, meta_in, ic, idx_in);
3375 SET_DICT(type_out, meta_out, oc, idx_out);
3377 /* for input streams choose first matching stream */
3378 if (type_in == 's') {
3379 for (i = 0; i < ic->nb_streams; i++) {
3380 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3381 meta_in = &ic->streams[i]->metadata;
3387 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3392 if (type_out == 's') {
3393 for (i = 0; i < oc->nb_streams; i++) {
3394 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3395 meta_out = &oc->streams[i]->metadata;
3396 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3401 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3406 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3408 const char *codec_string = encoder ? "encoder" : "decoder";
3412 avcodec_find_encoder_by_name(name) :
3413 avcodec_find_decoder_by_name(name);
3415 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3418 if (codec->type != type) {
3419 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3425 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3427 char *codec_name = NULL;
3429 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3431 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3432 st->codec->codec_id = codec->id;
3435 return avcodec_find_decoder(st->codec->codec_id);
3439 * Add all the streams from the given input file to the global
3440 * list of input streams.
3442 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3446 for (i = 0; i < ic->nb_streams; i++) {
3447 AVStream *st = ic->streams[i];
3448 AVCodecContext *dec = st->codec;
3449 InputStream *ist = av_mallocz(sizeof(*ist));
3450 char *framerate = NULL;
3455 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3456 input_streams[nb_input_streams - 1] = ist;
3459 ist->file_index = nb_input_files;
3461 st->discard = AVDISCARD_ALL;
3462 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, NULL);
3464 ist->ts_scale = 1.0;
3465 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3467 ist->dec = choose_decoder(o, ic, st);
3469 switch (dec->codec_type) {
3470 case AVMEDIA_TYPE_VIDEO:
3471 ist->resample_height = dec->height;
3472 ist->resample_width = dec->width;
3473 ist->resample_pix_fmt = dec->pix_fmt;
3475 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
3476 if (framerate && av_parse_video_rate(&ist->framerate,
3478 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
3484 case AVMEDIA_TYPE_AUDIO:
3485 guess_input_channel_layout(ist);
3487 ist->resample_sample_fmt = dec->sample_fmt;
3488 ist->resample_sample_rate = dec->sample_rate;
3489 ist->resample_channels = dec->channels;
3490 ist->resample_channel_layout = dec->channel_layout;
3493 case AVMEDIA_TYPE_DATA:
3494 case AVMEDIA_TYPE_SUBTITLE:
3495 case AVMEDIA_TYPE_ATTACHMENT:
3496 case AVMEDIA_TYPE_UNKNOWN:
3504 static void assert_file_overwrite(const char *filename)
3506 if (!file_overwrite &&
3507 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3508 av_strstart(filename, "file:", NULL))) {
3509 if (avio_check(filename, 0) == 0) {
3511 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3513 if (!read_yesno()) {
3514 fprintf(stderr, "Not overwriting - exiting\n");
3519 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3526 static void dump_attachment(AVStream *st, const char *filename)
3529 AVIOContext *out = NULL;
3530 AVDictionaryEntry *e;
3532 if (!st->codec->extradata_size) {
3533 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3534 nb_input_files - 1, st->index);
3537 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3538 filename = e->value;
3540 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3541 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3545 assert_file_overwrite(filename);
3547 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3548 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3553 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3558 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3560 AVFormatContext *ic;
3561 AVInputFormat *file_iformat = NULL;
3565 AVDictionary **opts;
3566 int orig_nb_streams; // number of streams before avformat_find_stream_info
3569 if (!(file_iformat = av_find_input_format(o->format))) {
3570 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3575 if (!strcmp(filename, "-"))
3578 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3579 !strcmp(filename, "/dev/stdin");
3581 /* get default parameters from command line */
3582 ic = avformat_alloc_context();
3584 print_error(filename, AVERROR(ENOMEM));
3587 if (o->nb_audio_sample_rate) {
3588 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3589 av_dict_set(&format_opts, "sample_rate", buf, 0);
3591 if (o->nb_audio_channels) {
3592 /* because we set audio_channels based on both the "ac" and
3593 * "channel_layout" options, we need to check that the specified
3594 * demuxer actually has the "channels" option before setting it */
3595 if (file_iformat && file_iformat->priv_class &&
3596 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
3597 AV_OPT_SEARCH_FAKE_OBJ)) {
3598 snprintf(buf, sizeof(buf), "%d",
3599 o->audio_channels[o->nb_audio_channels - 1].u.i);
3600 av_dict_set(&format_opts, "channels", buf, 0);
3603 if (o->nb_frame_rates) {
3604 /* set the format-level framerate option;
3605 * this is important for video grabbers, e.g. x11 */
3606 if (file_iformat && file_iformat->priv_class &&
3607 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
3608 AV_OPT_SEARCH_FAKE_OBJ)) {
3609 av_dict_set(&format_opts, "framerate",
3610 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3613 if (o->nb_frame_sizes) {
3614 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3616 if (o->nb_frame_pix_fmts)
3617 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3619 ic->flags |= AVFMT_FLAG_NONBLOCK;
3620 ic->interrupt_callback = int_cb;
3622 /* open the input file with generic libav function */
3623 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3625 print_error(filename, err);
3628 assert_avoptions(format_opts);
3630 /* apply forced codec ids */
3631 for (i = 0; i < ic->nb_streams; i++)
3632 choose_decoder(o, ic, ic->streams[i]);
3634 /* Set AVCodecContext options for avformat_find_stream_info */
3635 opts = setup_find_stream_info_opts(ic, codec_opts);
3636 orig_nb_streams = ic->nb_streams;
3638 /* If not enough info to get the stream parameters, we decode the
3639 first frames to get it. (used in mpeg case for example) */
3640 ret = avformat_find_stream_info(ic, opts);
3642 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3643 avformat_close_input(&ic);
3647 timestamp = o->start_time;
3648 /* add the stream start time */
3649 if (ic->start_time != AV_NOPTS_VALUE)
3650 timestamp += ic->start_time;
3652 /* if seeking requested, we execute it */
3653 if (o->start_time != 0) {
3654 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3656 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3657 filename, (double)timestamp / AV_TIME_BASE);
3661 /* update the current parameters so that they match the one of the input stream */
3662 add_input_streams(o, ic);
3664 /* dump the file content */
3665 av_dump_format(ic, nb_input_files, filename, 0);
3667 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3668 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
3671 input_files[nb_input_files - 1]->ctx = ic;
3672 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
3673 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3674 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
3675 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
3677 for (i = 0; i < o->nb_dump_attachment; i++) {
3680 for (j = 0; j < ic->nb_streams; j++) {
3681 AVStream *st = ic->streams[j];
3683 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3684 dump_attachment(st, o->dump_attachment[i].u.str);
3688 for (i = 0; i < orig_nb_streams; i++)
3689 av_dict_free(&opts[i]);
3696 static uint8_t *get_line(AVIOContext *s)
3702 if (avio_open_dyn_buf(&line) < 0) {
3703 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3707 while ((c = avio_r8(s)) && c != '\n')
3710 avio_close_dyn_buf(line, &buf);
3715 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3718 char filename[1000];
3719 const char *base[3] = { getenv("AVCONV_DATADIR"),
3724 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3728 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3729 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3730 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3733 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3734 i != 1 ? "" : "/.avconv", preset_name);
3735 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3741 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3743 char *codec_name = NULL;
3745 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3747 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3748 NULL, ost->st->codec->codec_type);
3749 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3750 } else if (!strcmp(codec_name, "copy"))
3751 ost->stream_copy = 1;
3753 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3754 ost->st->codec->codec_id = ost->enc->id;
3758 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3761 AVStream *st = avformat_new_stream(oc, NULL);
3762 int idx = oc->nb_streams - 1, ret = 0;
3763 char *bsf = NULL, *next, *codec_tag = NULL;
3764 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3766 char *buf = NULL, *arg = NULL, *preset = NULL;
3767 AVIOContext *s = NULL;
3770 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3774 if (oc->nb_streams - 1 < o->nb_streamid_map)
3775 st->id = o->streamid_map[oc->nb_streams - 1];
3777 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3778 nb_output_streams + 1);
3779 if (!(ost = av_mallocz(sizeof(*ost))))
3781 output_streams[nb_output_streams - 1] = ost;
3783 ost->file_index = nb_output_files;
3786 st->codec->codec_type = type;
3787 choose_encoder(o, oc, ost);
3789 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st, ost->enc);
3792 avcodec_get_context_defaults3(st->codec, ost->enc);
3793 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3795 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3796 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3799 if (!buf[0] || buf[0] == '#') {
3803 if (!(arg = strchr(buf, '='))) {
3804 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3808 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3810 } while (!s->eof_reached);
3814 av_log(NULL, AV_LOG_FATAL,
3815 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3816 preset, ost->file_index, ost->index);
3820 ost->max_frames = INT64_MAX;
3821 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3823 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3825 if (next = strchr(bsf, ','))
3827 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3828 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3832 bsfc_prev->next = bsfc;
3834 ost->bitstream_filters = bsfc;
3840 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3842 uint32_t tag = strtol(codec_tag, &next, 0);
3844 tag = AV_RL32(codec_tag);
3845 st->codec->codec_tag = tag;
3848 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3849 if (qscale >= 0 || same_quant) {
3850 st->codec->flags |= CODEC_FLAG_QSCALE;
3851 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3854 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3855 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3857 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3859 ost->pix_fmts[0] = ost->pix_fmts[1] = PIX_FMT_NONE;
3864 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3867 const char *p = str;
3874 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3881 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3885 AVCodecContext *video_enc;
3887 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3889 video_enc = st->codec;
3891 if (!ost->stream_copy) {
3892 const char *p = NULL;
3893 char *frame_rate = NULL, *frame_size = NULL;
3894 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3895 char *intra_matrix = NULL, *inter_matrix = NULL;
3896 const char *filters = "null";
3899 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3900 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3901 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3905 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3906 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3907 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3911 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3912 if (frame_aspect_ratio)
3913 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3915 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3916 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3917 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3920 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3922 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3924 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3925 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3928 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3930 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3932 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3933 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3936 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3939 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3940 for (i = 0; p; i++) {
3942 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
3944 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3947 video_enc->rc_override =
3948 av_realloc(video_enc->rc_override,
3949 sizeof(RcOverride) * (i + 1));
3950 video_enc->rc_override[i].start_frame = start;
3951 video_enc->rc_override[i].end_frame = end;
3953 video_enc->rc_override[i].qscale = q;
3954 video_enc->rc_override[i].quality_factor = 1.0;
3957 video_enc->rc_override[i].qscale = 0;
3958 video_enc->rc_override[i].quality_factor = -q/100.0;
3963 video_enc->rc_override_count = i;
3964 if (!video_enc->rc_initial_buffer_occupancy)
3965 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
3966 video_enc->intra_dc_precision = intra_dc_precision - 8;
3971 video_enc->flags |= CODEC_FLAG_PASS1;
3973 video_enc->flags |= CODEC_FLAG_PASS2;
3977 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
3978 if (ost->forced_keyframes)
3979 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
3981 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3983 ost->top_field_first = -1;
3984 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3986 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3987 ost->avfilter = av_strdup(filters);
3989 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3995 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3999 AVCodecContext *audio_enc;
4001 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
4004 audio_enc = st->codec;
4005 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
4007 if (!ost->stream_copy) {
4008 char *sample_fmt = NULL;
4009 const char *filters = "anull";
4011 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
4013 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
4015 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
4016 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
4020 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
4022 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
4023 ost->avfilter = av_strdup(filters);
4029 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
4033 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
4034 if (!ost->stream_copy) {
4035 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
4042 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
4044 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
4045 ost->stream_copy = 1;
4049 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
4053 AVCodecContext *subtitle_enc;
4055 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
4057 subtitle_enc = st->codec;
4059 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4064 /* arg format is "output-stream-index:streamid-value". */
4065 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
4071 av_strlcpy(idx_str, arg, sizeof(idx_str));
4072 p = strchr(idx_str, ':');
4074 av_log(NULL, AV_LOG_FATAL,
4075 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
4080 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
4081 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
4082 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
4086 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
4088 AVFormatContext *is = ifile->ctx;
4089 AVFormatContext *os = ofile->ctx;
4092 for (i = 0; i < is->nb_chapters; i++) {
4093 AVChapter *in_ch = is->chapters[i], *out_ch;
4094 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
4095 AV_TIME_BASE_Q, in_ch->time_base);
4096 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
4097 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
4100 if (in_ch->end < ts_off)
4102 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
4105 out_ch = av_mallocz(sizeof(AVChapter));
4107 return AVERROR(ENOMEM);
4109 out_ch->id = in_ch->id;
4110 out_ch->time_base = in_ch->time_base;
4111 out_ch->start = FFMAX(0, in_ch->start - ts_off);
4112 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
4115 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
4118 os->chapters = av_realloc(os->chapters, sizeof(AVChapter) * os->nb_chapters);
4120 return AVERROR(ENOMEM);
4121 os->chapters[os->nb_chapters - 1] = out_ch;
4126 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
4127 AVFormatContext *oc)
4131 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
4132 ofilter->out_tmp->pad_idx)) {
4133 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
4134 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
4136 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
4141 ost->source_index = -1;
4142 ost->filter = ofilter;
4146 if (ost->stream_copy) {
4147 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
4148 "which is fed from a complex filtergraph. Filtering and streamcopy "
4149 "cannot be used together.\n", ost->file_index, ost->index);
4153 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
4154 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
4157 avfilter_inout_free(&ofilter->out_tmp);
4160 static void opt_output_file(void *optctx, const char *filename)
4162 OptionsContext *o = optctx;
4163 AVFormatContext *oc;
4165 AVOutputFormat *file_oformat;
4169 if (configure_complex_filters() < 0) {
4170 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
4174 if (!strcmp(filename, "-"))
4177 oc = avformat_alloc_context();
4179 print_error(filename, AVERROR(ENOMEM));
4184 file_oformat = av_guess_format(o->format, NULL, NULL);
4185 if (!file_oformat) {
4186 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
4190 file_oformat = av_guess_format(NULL, filename, NULL);
4191 if (!file_oformat) {
4192 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
4198 oc->oformat = file_oformat;
4199 oc->interrupt_callback = int_cb;
4200 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
4202 /* create streams for all unlabeled output pads */
4203 for (i = 0; i < nb_filtergraphs; i++) {
4204 FilterGraph *fg = filtergraphs[i];
4205 for (j = 0; j < fg->nb_outputs; j++) {
4206 OutputFilter *ofilter = fg->outputs[j];
4208 if (!ofilter->out_tmp || ofilter->out_tmp->name)
4211 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
4212 ofilter->out_tmp->pad_idx)) {
4213 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
4214 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
4215 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
4217 init_output_filter(ofilter, o, oc);
4221 if (!o->nb_stream_maps) {
4222 /* pick the "best" stream of each type */
4223 #define NEW_STREAM(type, index)\
4225 ost = new_ ## type ## _stream(o, oc);\
4226 ost->source_index = index;\
4227 ost->sync_ist = input_streams[index];\
4228 input_streams[index]->discard = 0;\
4229 input_streams[index]->st->discard = AVDISCARD_NONE;\
4232 /* video: highest resolution */
4233 if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
4234 int area = 0, idx = -1;
4235 for (i = 0; i < nb_input_streams; i++) {
4236 ist = input_streams[i];
4237 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4238 ist->st->codec->width * ist->st->codec->height > area) {
4239 area = ist->st->codec->width * ist->st->codec->height;
4243 NEW_STREAM(video, idx);
4246 /* audio: most channels */
4247 if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
4248 int channels = 0, idx = -1;
4249 for (i = 0; i < nb_input_streams; i++) {
4250 ist = input_streams[i];
4251 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
4252 ist->st->codec->channels > channels) {
4253 channels = ist->st->codec->channels;
4257 NEW_STREAM(audio, idx);
4260 /* subtitles: pick first */
4261 if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
4262 for (i = 0; i < nb_input_streams; i++)
4263 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4264 NEW_STREAM(subtitle, i);
4268 /* do something with data? */
4270 for (i = 0; i < o->nb_stream_maps; i++) {
4271 StreamMap *map = &o->stream_maps[i];
4276 if (map->linklabel) {
4278 OutputFilter *ofilter = NULL;
4281 for (j = 0; j < nb_filtergraphs; j++) {
4282 fg = filtergraphs[j];
4283 for (k = 0; k < fg->nb_outputs; k++) {
4284 AVFilterInOut *out = fg->outputs[k]->out_tmp;
4285 if (out && !strcmp(out->name, map->linklabel)) {
4286 ofilter = fg->outputs[k];
4293 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
4294 "in any defined filter graph.\n", map->linklabel);
4297 init_output_filter(ofilter, o, oc);
4299 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
4300 switch (ist->st->codec->codec_type) {
4301 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
4302 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
4303 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
4304 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
4305 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
4307 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
4308 map->file_index, map->stream_index);
4312 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
4313 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
4314 map->sync_stream_index];
4316 ist->st->discard = AVDISCARD_NONE;
4321 /* handle attached files */
4322 for (i = 0; i < o->nb_attachments; i++) {
4324 uint8_t *attachment;
4328 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
4329 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
4333 if ((len = avio_size(pb)) <= 0) {
4334 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
4338 if (!(attachment = av_malloc(len))) {
4339 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
4343 avio_read(pb, attachment, len);
4345 ost = new_attachment_stream(o, oc);
4346 ost->stream_copy = 0;
4347 ost->source_index = -1;
4348 ost->attachment_filename = o->attachments[i];
4349 ost->st->codec->extradata = attachment;
4350 ost->st->codec->extradata_size = len;
4352 p = strrchr(o->attachments[i], '/');
4353 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
4357 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
4358 if (!(output_files[nb_output_files - 1] = av_mallocz(sizeof(*output_files[0]))))
4361 output_files[nb_output_files - 1]->ctx = oc;
4362 output_files[nb_output_files - 1]->ost_index = nb_output_streams - oc->nb_streams;
4363 output_files[nb_output_files - 1]->recording_time = o->recording_time;
4364 if (o->recording_time != INT64_MAX)
4365 oc->duration = o->recording_time;
4366 output_files[nb_output_files - 1]->start_time = o->start_time;
4367 output_files[nb_output_files - 1]->limit_filesize = o->limit_filesize;
4368 av_dict_copy(&output_files[nb_output_files - 1]->opts, format_opts, 0);
4370 /* check filename in case of an image number is expected */
4371 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
4372 if (!av_filename_number_test(oc->filename)) {
4373 print_error(oc->filename, AVERROR(EINVAL));
4378 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
4379 /* test if it already exists to avoid losing precious files */
4380 assert_file_overwrite(filename);
4383 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
4384 &oc->interrupt_callback,
4385 &output_files[nb_output_files - 1]->opts)) < 0) {
4386 print_error(filename, err);
4391 if (o->mux_preload) {
4393 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
4394 av_dict_set(&output_files[nb_output_files - 1]->opts, "preload", buf, 0);
4396 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
4397 oc->flags |= AVFMT_FLAG_NONBLOCK;
4400 for (i = 0; i < o->nb_metadata_map; i++) {
4402 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
4404 if (in_file_index < 0)
4406 if (in_file_index >= nb_input_files) {
4407 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
4410 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, input_files[in_file_index]->ctx, o);
4414 if (o->chapters_input_file >= nb_input_files) {
4415 if (o->chapters_input_file == INT_MAX) {
4416 /* copy chapters from the first input file that has them*/
4417 o->chapters_input_file = -1;
4418 for (i = 0; i < nb_input_files; i++)
4419 if (input_files[i]->ctx->nb_chapters) {
4420 o->chapters_input_file = i;
4424 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
4425 o->chapters_input_file);
4429 if (o->chapters_input_file >= 0)
4430 copy_chapters(input_files[o->chapters_input_file], output_files[nb_output_files - 1],
4431 !o->metadata_chapters_manual);
4433 /* copy global metadata by default */
4434 if (!o->metadata_global_manual && nb_input_files)
4435 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
4436 AV_DICT_DONT_OVERWRITE);
4437 if (!o->metadata_streams_manual)
4438 for (i = output_files[nb_output_files - 1]->ost_index; i < nb_output_streams; i++) {
4440 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
4442 ist = input_streams[output_streams[i]->source_index];
4443 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
4446 /* process manually set metadata */
4447 for (i = 0; i < o->nb_metadata; i++) {
4450 const char *stream_spec;
4451 int index = 0, j, ret;
4453 val = strchr(o->metadata[i].u.str, '=');
4455 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
4456 o->metadata[i].u.str);
4461 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
4463 for (j = 0; j < oc->nb_streams; j++) {
4464 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
4465 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
4476 if (index < 0 || index >= oc->nb_chapters) {
4477 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
4480 m = &oc->chapters[index]->metadata;
4483 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
4486 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
4493 /* same option as mencoder */
4494 static int opt_pass(const char *opt, const char *arg)
4496 do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 2);
4500 static int64_t getutime(void)
4503 struct rusage rusage;
4505 getrusage(RUSAGE_SELF, &rusage);
4506 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
4507 #elif HAVE_GETPROCESSTIMES
4509 FILETIME c, e, k, u;
4510 proc = GetCurrentProcess();
4511 GetProcessTimes(proc, &c, &e, &k, &u);
4512 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
4514 return av_gettime();
4518 static int64_t getmaxrss(void)
4520 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
4521 struct rusage rusage;
4522 getrusage(RUSAGE_SELF, &rusage);
4523 return (int64_t)rusage.ru_maxrss * 1024;
4524 #elif HAVE_GETPROCESSMEMORYINFO
4526 PROCESS_MEMORY_COUNTERS memcounters;
4527 proc = GetCurrentProcess();
4528 memcounters.cb = sizeof(memcounters);
4529 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
4530 return memcounters.PeakPagefileUsage;
4536 static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
4538 return parse_option(o, "q:a", arg, options);
4541 static void show_usage(void)
4543 printf("Hyper fast Audio and Video encoder\n");
4544 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
4548 static void show_help(void)
4550 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
4551 av_log_set_callback(log_callback_help);
4553 show_help_options(options, "Main options:\n",
4554 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
4555 show_help_options(options, "\nAdvanced options:\n",
4556 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
4558 show_help_options(options, "\nVideo options:\n",
4559 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4561 show_help_options(options, "\nAdvanced Video options:\n",
4562 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4563 OPT_VIDEO | OPT_EXPERT);
4564 show_help_options(options, "\nAudio options:\n",
4565 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4567 show_help_options(options, "\nAdvanced Audio options:\n",
4568 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4569 OPT_AUDIO | OPT_EXPERT);
4570 show_help_options(options, "\nSubtitle options:\n",
4571 OPT_SUBTITLE | OPT_GRAB,
4573 show_help_options(options, "\nAudio/Video grab options:\n",
4577 show_help_children(avcodec_get_class(), flags);
4578 show_help_children(avformat_get_class(), flags);
4579 show_help_children(sws_get_class(), flags);
4582 static int opt_target(OptionsContext *o, const char *opt, const char *arg)
4584 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
4585 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
4587 if (!strncmp(arg, "pal-", 4)) {
4590 } else if (!strncmp(arg, "ntsc-", 5)) {
4593 } else if (!strncmp(arg, "film-", 5)) {
4597 /* Try to determine PAL/NTSC by peeking in the input files */
4598 if (nb_input_files) {
4600 for (j = 0; j < nb_input_files; j++) {
4601 for (i = 0; i < input_files[j]->nb_streams; i++) {
4602 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
4603 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
4605 fr = c->time_base.den * 1000 / c->time_base.num;
4609 } else if ((fr == 29970) || (fr == 23976)) {
4614 if (norm != UNKNOWN)
4618 if (norm != UNKNOWN)
4619 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
4622 if (norm == UNKNOWN) {
4623 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
4624 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
4625 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
4629 if (!strcmp(arg, "vcd")) {
4630 opt_video_codec(o, "c:v", "mpeg1video");
4631 opt_audio_codec(o, "c:a", "mp2");
4632 parse_option(o, "f", "vcd", options);
4634 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
4635 parse_option(o, "r", frame_rates[norm], options);
4636 opt_default("g", norm == PAL ? "15" : "18");
4638 opt_default("b", "1150000");
4639 opt_default("maxrate", "1150000");
4640 opt_default("minrate", "1150000");
4641 opt_default("bufsize", "327680"); // 40*1024*8;
4643 opt_default("b:a", "224000");
4644 parse_option(o, "ar", "44100", options);
4645 parse_option(o, "ac", "2", options);
4647 opt_default("packetsize", "2324");
4648 opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
4650 /* We have to offset the PTS, so that it is consistent with the SCR.
4651 SCR starts at 36000, but the first two packs contain only padding
4652 and the first pack from the other stream, respectively, may also have
4653 been written before.
4654 So the real data starts at SCR 36000+3*1200. */
4655 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
4656 } else if (!strcmp(arg, "svcd")) {
4658 opt_video_codec(o, "c:v", "mpeg2video");
4659 opt_audio_codec(o, "c:a", "mp2");
4660 parse_option(o, "f", "svcd", options);
4662 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
4663 parse_option(o, "r", frame_rates[norm], options);
4664 opt_default("g", norm == PAL ? "15" : "18");
4666 opt_default("b", "2040000");
4667 opt_default("maxrate", "2516000");
4668 opt_default("minrate", "0"); // 1145000;
4669 opt_default("bufsize", "1835008"); // 224*1024*8;
4670 opt_default("flags", "+scan_offset");
4673 opt_default("b:a", "224000");
4674 parse_option(o, "ar", "44100", options);
4676 opt_default("packetsize", "2324");
4678 } else if (!strcmp(arg, "dvd")) {
4680 opt_video_codec(o, "c:v", "mpeg2video");
4681 opt_audio_codec(o, "c:a", "ac3");
4682 parse_option(o, "f", "dvd", options);
4684 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
4685 parse_option(o, "r", frame_rates[norm], options);
4686 opt_default("g", norm == PAL ? "15" : "18");
4688 opt_default("b", "6000000");
4689 opt_default("maxrate", "9000000");
4690 opt_default("minrate", "0"); // 1500000;
4691 opt_default("bufsize", "1835008"); // 224*1024*8;
4693 opt_default("packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
4694 opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
4696 opt_default("b:a", "448000");
4697 parse_option(o, "ar", "48000", options);
4699 } else if (!strncmp(arg, "dv", 2)) {
4701 parse_option(o, "f", "dv", options);
4703 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
4704 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
4705 norm == PAL ? "yuv420p" : "yuv411p", options);
4706 parse_option(o, "r", frame_rates[norm], options);
4708 parse_option(o, "ar", "48000", options);
4709 parse_option(o, "ac", "2", options);
4712 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
4713 return AVERROR(EINVAL);
4718 static int opt_vstats_file(const char *opt, const char *arg)
4720 av_free (vstats_filename);
4721 vstats_filename = av_strdup (arg);
4725 static int opt_vstats(const char *opt, const char *arg)
4728 time_t today2 = time(NULL);
4729 struct tm *today = localtime(&today2);
4731 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
4733 return opt_vstats_file(opt, filename);
4736 static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
4738 return parse_option(o, "frames:v", arg, options);
4741 static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
4743 return parse_option(o, "frames:a", arg, options);
4746 static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
4748 return parse_option(o, "frames:d", arg, options);
4751 static int opt_video_tag(OptionsContext *o, const char *opt, const char *arg)
4753 return parse_option(o, "tag:v", arg, options);
4756 static int opt_audio_tag(OptionsContext *o, const char *opt, const char *arg)
4758 return parse_option(o, "tag:a", arg, options);
4761 static int opt_subtitle_tag(OptionsContext *o, const char *opt, const char *arg)
4763 return parse_option(o, "tag:s", arg, options);
4766 static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
4768 return parse_option(o, "filter:v", arg, options);
4771 static int opt_audio_filters(OptionsContext *o, const char *opt, const char *arg)
4773 return parse_option(o, "filter:a", arg, options);
4776 static int opt_vsync(const char *opt, const char *arg)
4778 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
4779 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
4780 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
4782 if (video_sync_method == VSYNC_AUTO)
4783 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
4787 static int opt_deinterlace(const char *opt, const char *arg)
4789 av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
4794 static int opt_cpuflags(const char *opt, const char *arg)
4796 int flags = av_parse_cpu_flags(arg);
4801 av_set_cpu_flags_mask(flags);
4805 static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
4807 int idx = locate_option(argc, argv, options, "cpuflags");
4808 if (idx && argv[idx + 1])
4809 opt_cpuflags("cpuflags", argv[idx + 1]);
4812 static int opt_channel_layout(OptionsContext *o, const char *opt, const char *arg)
4814 char layout_str[32];
4817 int ret, channels, ac_str_size;
4820 layout = av_get_channel_layout(arg);
4822 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
4823 return AVERROR(EINVAL);
4825 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
4826 ret = opt_default(opt, layout_str);
4830 /* set 'ac' option based on channel layout */
4831 channels = av_get_channel_layout_nb_channels(layout);
4832 snprintf(layout_str, sizeof(layout_str), "%d", channels);
4833 stream_str = strchr(opt, ':');
4834 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
4835 ac_str = av_mallocz(ac_str_size);
4837 return AVERROR(ENOMEM);
4838 av_strlcpy(ac_str, "ac", 3);
4840 av_strlcat(ac_str, stream_str, ac_str_size);
4841 ret = parse_option(o, ac_str, layout_str, options);
4847 static int opt_filter_complex(const char *opt, const char *arg)
4849 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
4850 &nb_filtergraphs, nb_filtergraphs + 1);
4851 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
4852 return AVERROR(ENOMEM);
4853 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
4854 filtergraphs[nb_filtergraphs - 1]->graph_desc = arg;
4858 #define OFFSET(x) offsetof(OptionsContext, x)
4859 static const OptionDef real_options[] = {
4861 #include "cmdutils_common_opts.h"
4862 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
4863 { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
4864 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
4865 { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
4866 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
4867 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
4868 { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
4869 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata_map)}, "set metadata information of outfile from infile",
4870 "outfile[,metadata]:infile[,metadata]" },
4871 { "map_chapters", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)}, "set chapters mapping", "input_file_index" },
4872 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
4873 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
4874 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
4875 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
4876 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
4877 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
4878 { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
4879 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
4880 "add timings for benchmarking" },
4881 { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
4882 { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
4883 "dump each input packet" },
4884 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
4885 "when dumping packets, also dump the payload" },
4886 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
4887 { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
4888 { "vsync", HAS_ARG | OPT_EXPERT, {(void*)opt_vsync}, "video sync method", "" },
4889 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
4890 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
4891 { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)©_ts}, "copy timestamps" },
4892 { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)©_tb}, "copy input stream time base when stream copying" },
4893 { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
4894 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
4895 { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
4896 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
4897 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
4898 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
4899 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
4900 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
4901 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
4902 { "filter_complex", HAS_ARG | OPT_EXPERT, {(void*)opt_filter_complex}, "create a complex filtergraph", "graph_description" },
4903 { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
4904 { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
4905 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
4906 { "cpuflags", HAS_ARG | OPT_EXPERT, {(void*)opt_cpuflags}, "set CPU flags mask", "mask" },
4909 { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
4910 { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
4911 { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
4912 { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
4913 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
4914 { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
4915 { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
4916 { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
4917 { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
4918 { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
4919 "use same quantizer as source (implies VBR)" },
4920 { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
4921 { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename_prefix}, "select two pass log file name prefix", "prefix" },
4922 { "deinterlace", OPT_EXPERT | OPT_VIDEO, {(void*)opt_deinterlace},
4923 "this option is deprecated, use the yadif filter instead" },
4924 { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
4925 { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
4926 { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
4927 { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
4928 { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
4929 { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
4930 { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
4931 { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
4932 { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
4933 { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
4934 { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
4935 { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
4938 { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
4939 { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
4940 { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
4941 { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
4942 { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
4943 { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
4944 { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_tag}, "force audio tag/fourcc", "fourcc/tag" },
4945 { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
4946 { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
4947 { "channel_layout", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_channel_layout}, "set channel layout", "layout" },
4948 { "af", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_filters}, "audio filters", "filter list" },
4950 /* subtitle options */
4951 { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
4952 { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
4953 { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
4956 { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
4959 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
4960 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)}, "set the initial demux-decode delay", "seconds" },
4962 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
4964 /* data codec support */
4965 { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
4967 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
4971 int main(int argc, char **argv)
4973 OptionsContext o = { 0 };
4976 options = real_options;
4979 av_log_set_flags(AV_LOG_SKIP_REPEATED);
4980 parse_loglevel(argc, argv, options);
4982 avcodec_register_all();
4984 avdevice_register_all();
4986 avfilter_register_all();
4988 avformat_network_init();
4992 parse_cpuflags(argc, argv, options);
4995 parse_options(&o, argc, argv, options, opt_output_file);
4997 if (nb_output_files <= 0 && nb_input_files == 0) {
4999 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
5003 /* file converter / grab */
5004 if (nb_output_files <= 0) {
5005 fprintf(stderr, "At least one output file must be specified\n");
5009 if (nb_input_files == 0) {
5010 av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
5015 if (transcode() < 0)
5017 ti = getutime() - ti;
5019 int maxrss = getmaxrss() / 1024;
5020 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);